超宽带抗干扰通信定位技术研究
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摘要
超宽带机理是利用脉冲冲击调制，形成扩频超宽带信号进行信息传输。美国从20世纪90年代中期以来，研制了多种超宽带无线电通信、雷达、成像和高精度定位系统，作为军用设备的超宽带无线电系统已得到实际应用。目前，商用和军用都对通信测控或定位系统的信息安全提出了更高的要求，超宽带信号功率远小于热噪声，可以进行隐蔽传输，具备较强的抗干扰和抗截获能力，其多用户测控无线入网可具备入网认证和身份识别功能。这种通信体制具备很强的信道安全能力，和其它信息加密综合应用能够满足很强的信息安全要求。所以研究超宽带的通信技术具有重要的商用和军用价值。
本论文的主要以下几个方面进行了研究：
(1)对超宽带脉冲通信体制研究，给出了该体制的实现方法。
在研究了超宽带信号的定义和频谱特性的基础上，给出了基于超宽带脉冲扩频信号的幅度调制、时延相位调制和伪码复合调制等调制形式和超宽带信号解调方法，对超宽带接收性能进行了计算和分析，并给出了接收工程实现的示意框图。
(2)对超宽带信号的测距捕获进行了研究，提出了两种快捕方法。
主要研究了基于伪码复合冲击脉冲信号测距的方法，分析了伪码脉冲幅度调制和时延相位调制两种信号形式频谱，以幅度调制信号为例分析了全相参时延捕获方法，提出了平方脉冲相位捕获再伪码相位捕获和先延迟相乘脉冲相位捕获再伪码相位捕获两种快捕方法，比较计算了多种捕获方法的检测信噪比，并给出了快捕实现原理框图。
(3)对高动态超宽带信号的进行了研究，首次提出了时变模板的概念和矩阵相关的方法。
在高动态时变超宽带信号的捕获跟踪方面，针对超宽带时变信号首次提出了时变模板的概念和矩阵相关的方法，建立了基于分数阶域滤的超宽带一时频联合匹配滤波的框架，解决了超宽带时变信号的检测，能够满足超宽带高动态的特种情况捕获应用。查阅国内外相关文献，没有发现相关文献报告。
(4)在超宽带信号精密跟踪方面，首次提出了一种应用于超宽带的冲击脉冲早迟跟踪环路的实现方法。
通过对高斯白噪声下的环路跟踪精度和性能进行了理论计算，给出了超宽带的冲击脉冲早迟跟踪环的时延测量精度的理论值，并进行了多种形式冲击脉冲信号的系统仿真验证。最后在自研的硬件平台系统仿真结果和理论结果一致。查阅国内外相关文献，没有相关报告。
(5)对超宽带多用户工作和组网性能进行了研究，提出了超宽带多用户定位精度的计算方法。
主要介绍了民用无线局域网的各种标准协议，针对中远距离的多用户测控问题，提出了一种全新的超宽带多目标隐蔽测控体制，给出了TH-PPM和TH-PAM两种多用户组网工作信号体制，并对该类信号的产生调制和相干捕获方法，对多目标的测控传输的误码率进行了工程计算；对多目标的捕获解调进行了计算分析，并对该信号的多用户定位精度进行了计算分析；提出了超宽带多目标测控网络拓扑结构，对其组网安全认证过程进行了分析；最后给出了相关结论。
(6)在超宽带高速数据传输技术方面，主要针对超宽带高速数据传输提出了多个伪码和多个正交Walsh函数并行调制传输的两种方法，采用并行传输可以有效提高超宽带系统的传输速率，降低码间干扰和实际工程处理难度。并在试验样机上试验了这种方法。查阅国内外相关文献，没有发现相关报告。
(7)超宽带的电波传输和多径接收研究
研究了冲击脉冲调制信号空间传播形式，在和传统信号传播方式进行比较的基础上，针对中远距离通信，提出了一种冲击信号空间传播模型，研究和仿真试验表明，在传统瑞利信道中，采用冲击调制的信号具备优良的抗空间多径能力，各项性能明显优于传统扩频通信信号。
(8)在超宽带阵列信号空时处理方面，独立提出了一种基于时域分析的复合加权宽带阵列信号处理新方法。首次推导证明了阵列系统的时延测量精度是个阵元时延测量精度的统计平均值。
该方法通过群时延、相位和幅度复合加权处理，可以避免复杂的频域聚焦算法；对超宽带的阵列信号处理进行了独创性研究，提出了一种便于工程实现的一种简单的超宽带空时阵列处理方法，可以在超宽带信号抗干扰的基础上，进一步提高系统的抗干扰能力；采用数学方法首次推导证明了阵列系统的时延测量精度是个阵元时延测量精度的统计平均值。以上查阅国内外相关文献，没有发现相关报告。
(9)超宽带信号仿真和硬件平台试验研究
主要对超宽带信号的捕获、跟踪、数据传输、多用户通信工作、多径信道等作了多种仿真试验，在自主研制的超宽带信号的硬平台上件产生、调制和解调技术，实现了一种超宽带专用硬件平台，实现了670ps的脉冲冲击信号，完成了1Mbps数据的调制和解调试验。这些超宽带的调制解调算法都是我们独立研发的，具有自主知识产权。
Ultra Wide Band (UWB) mechanism is to use the pulsing modulation to form spread spectrum signals for information transmission. USA, since middle 1990's, has developed several UWB radio communication, radar, imaging and high precision positioning systems, which have been applied practically as the UWB radio system in military equipment. At present, as both commercial and military communication, TT & C and positioning systems have high requirements for information security, the UWB signal, due to its much lower signal power compared with thermal noise, can be used for covert communication and has high anti-interference capability and low LPI, and its multi-user TT & C radio network access has the functions of network access authentication and ID authentication. This communication mechanism has high channel security and satisfies the requirement for high information security with combination with other information encryption techniques. Therefore, the study on UWB communication is very important for both military and commercial use.
This paper mainly presents the research results in terms of the following aspects:
1) Study on UWB pulse communication system, providing the implementation methods for that system
Based on the study on definitions and spectral characteristics of UWB signals, the modulation modes based on UWB spread spectrum signals, such as amplitude modulation (AM), delay phase modulation (PM) and PN-code combined modulation, and the demodulation modes for UWB signals are provided, the UWB receiving performance is computed and analyzed, and the schematic block diagram of engineering implementation for receiving is shown.
2) Study on ranging and acquisition of UWB signals, providing 2 fast acquisition methods.
This paper mainly studies the ranging method based on PN code combined impulse signals, analyzes the signal spectrums for PN-code impulse AM and delay PM, takes the AM signal as the example to analyze the full-coherent delay acquisition method, proposes two fast acquisition methods(square pulse phase acquisition first and then PN-code phase acquisition, and delay multiplication pulse phase acquisition first and then PN-code phase acquisition), calculates and compares the detection SNRs of several acquisition methods, and provides the principle block diagram for implementation of fast acquisition.
3) Study on high dynamic UWB signal, providing the concept of time variant template and the method of matrix vector correlation for the first time
With respect to the acquisition and tracking of high dynamic time variant UWB signals, in this paper a concept of time variant template and a method of matrix vector correlation are proposed for the first time, which establishes a matched filter framework in UWB-time-frequency domain based on fractional Fourier transform (FRFT) filter, solves the issue of detection for UWB time variant signal and satisfies the acquisition application under special conditions with UWB high dynamic. No the topic related material is found by searching in the literatures in China and abroad.
4) As for the precision tracking of UWB signal, an implementation method for UWB impulse delay lock loop is proposed.
Through theoretical calculation of loop tracking accuracy and performance under Gaussian white noise conditions, provided are the theoretical values of delay measurement accuracy for UWB impulse delay lock loop, and system simulation verification for multiple kinds of impulse signals is carried out. At last, the system simulation results of the hardware platform self-developed are compliant with the theoretical results. No this topic related report is found by searching in literatures in China and abroad.
5) Study on UWB multi-user operation and networking performance, proposing a calculation method for UWB multi-user positioning accuracy
This paper introduces the standards and protocols for civil WLAN, proposes a novel UWB multi-target covert TT & C system for long/medium-distance multi-user TT & C, provides two multi-user networking signal systems—TH-PPM and TH-PAM, performs engineering computation for generation, modulation and coherent acquisition methods of that signal and BER of multi-target TT & C transmission; carries out computational analysis for multi-target acquisition and demodulation; carries out computational analysis of the multi-user positioning accuracy of that signal; proposes a topology for UWB multi-target TT & C network; analyzes the networking security authentication process; at last, provides related conclusions.
6) As for UWB high-rate data transmission technology, two parallel modulation transmission methods with multiple PN codes and multiple Walsh functions are proposed, which can significantly increase transmission rate of UWB system and reduce inter-symbol interference and difficulty of practical engineering processing. In addition, this method is tested on test prototype. No this topic related report is found by searching in literatures in China and abroad.
7) Study on UWB radio wave propagation and multi-path receiving
The space propagation approach of impulse modulation signal isstudied; on the basis of comparison with traditional signal propagation approach, an impulse signal space propagation model is proposed for long/medium-distance communication. The research and simulations show that the impulse modulation signals used have good capability of space multi-path resistance and have much better performance than traditional spread spectrum communication signal.
8) As for UWB array signal space-time process, a novel method for composite weighted wideband spread spectrum array signal processing based on time domain analysis is proposed. For the first time, it is derived and proved that the delay measurement accuracy of an array system is the statistical average of that of all elements.
This method avoids complex frequency domain focus algorithm through composite weighting processing of group-delay of the array signal, phase and amplitude. Based on our creative study on UWB array signal processing, a simple UWB space-time array processing method easy for engineering implementation is proposed, which can further improve the anti-interference capability of system on the basis of the inherent anti-interference capability of UWB signal. For the first time, it is derived and proved that the delay measurement accuracy of an array system is the statistical average of that of all elements with a mathematical method. No this topic related report is found by searching in literatures in China and abroad.
9) Experimental study on UWB signal simulation and hardware platform
Multiple simulation tests are performed for UWB signal acquisition, tracking, data transmission, multi-user communication operation and multi-path channel. Generation, modulation and demodulation technology is implemented on the UWB signal hardware platform self-developed. A special UWB hardware platform and 670ps impulse signal are realized and modulation/demodulation experiments for 1Mbps data are performed. These UWB modulation/demodulation algorithms are developed by our own and have independent IPR.
本论文的主要以下几个方面进行了研究：
(1)对超宽带脉冲通信体制研究，给出了该体制的实现方法。
在研究了超宽带信号的定义和频谱特性的基础上，给出了基于超宽带脉冲扩频信号的幅度调制、时延相位调制和伪码复合调制等调制形式和超宽带信号解调方法，对超宽带接收性能进行了计算和分析，并给出了接收工程实现的示意框图。
(2)对超宽带信号的测距捕获进行了研究，提出了两种快捕方法。
主要研究了基于伪码复合冲击脉冲信号测距的方法，分析了伪码脉冲幅度调制和时延相位调制两种信号形式频谱，以幅度调制信号为例分析了全相参时延捕获方法，提出了平方脉冲相位捕获再伪码相位捕获和先延迟相乘脉冲相位捕获再伪码相位捕获两种快捕方法，比较计算了多种捕获方法的检测信噪比，并给出了快捕实现原理框图。
(3)对高动态超宽带信号的进行了研究，首次提出了时变模板的概念和矩阵相关的方法。
在高动态时变超宽带信号的捕获跟踪方面，针对超宽带时变信号首次提出了时变模板的概念和矩阵相关的方法，建立了基于分数阶域滤的超宽带一时频联合匹配滤波的框架，解决了超宽带时变信号的检测，能够满足超宽带高动态的特种情况捕获应用。查阅国内外相关文献，没有发现相关文献报告。
(4)在超宽带信号精密跟踪方面，首次提出了一种应用于超宽带的冲击脉冲早迟跟踪环路的实现方法。
通过对高斯白噪声下的环路跟踪精度和性能进行了理论计算，给出了超宽带的冲击脉冲早迟跟踪环的时延测量精度的理论值，并进行了多种形式冲击脉冲信号的系统仿真验证。最后在自研的硬件平台系统仿真结果和理论结果一致。查阅国内外相关文献，没有相关报告。
(5)对超宽带多用户工作和组网性能进行了研究，提出了超宽带多用户定位精度的计算方法。
主要介绍了民用无线局域网的各种标准协议，针对中远距离的多用户测控问题，提出了一种全新的超宽带多目标隐蔽测控体制，给出了TH-PPM和TH-PAM两种多用户组网工作信号体制，并对该类信号的产生调制和相干捕获方法，对多目标的测控传输的误码率进行了工程计算；对多目标的捕获解调进行了计算分析，并对该信号的多用户定位精度进行了计算分析；提出了超宽带多目标测控网络拓扑结构，对其组网安全认证过程进行了分析；最后给出了相关结论。
(6)在超宽带高速数据传输技术方面，主要针对超宽带高速数据传输提出了多个伪码和多个正交Walsh函数并行调制传输的两种方法，采用并行传输可以有效提高超宽带系统的传输速率，降低码间干扰和实际工程处理难度。并在试验样机上试验了这种方法。查阅国内外相关文献，没有发现相关报告。
(7)超宽带的电波传输和多径接收研究
研究了冲击脉冲调制信号空间传播形式，在和传统信号传播方式进行比较的基础上，针对中远距离通信，提出了一种冲击信号空间传播模型，研究和仿真试验表明，在传统瑞利信道中，采用冲击调制的信号具备优良的抗空间多径能力，各项性能明显优于传统扩频通信信号。
(8)在超宽带阵列信号空时处理方面，独立提出了一种基于时域分析的复合加权宽带阵列信号处理新方法。首次推导证明了阵列系统的时延测量精度是个阵元时延测量精度的统计平均值。
该方法通过群时延、相位和幅度复合加权处理，可以避免复杂的频域聚焦算法；对超宽带的阵列信号处理进行了独创性研究，提出了一种便于工程实现的一种简单的超宽带空时阵列处理方法，可以在超宽带信号抗干扰的基础上，进一步提高系统的抗干扰能力；采用数学方法首次推导证明了阵列系统的时延测量精度是个阵元时延测量精度的统计平均值。以上查阅国内外相关文献，没有发现相关报告。
(9)超宽带信号仿真和硬件平台试验研究
主要对超宽带信号的捕获、跟踪、数据传输、多用户通信工作、多径信道等作了多种仿真试验，在自主研制的超宽带信号的硬平台上件产生、调制和解调技术，实现了一种超宽带专用硬件平台，实现了670ps的脉冲冲击信号，完成了1Mbps数据的调制和解调试验。这些超宽带的调制解调算法都是我们独立研发的，具有自主知识产权。
Ultra Wide Band (UWB) mechanism is to use the pulsing modulation to form spread spectrum signals for information transmission. USA, since middle 1990's, has developed several UWB radio communication, radar, imaging and high precision positioning systems, which have been applied practically as the UWB radio system in military equipment. At present, as both commercial and military communication, TT & C and positioning systems have high requirements for information security, the UWB signal, due to its much lower signal power compared with thermal noise, can be used for covert communication and has high anti-interference capability and low LPI, and its multi-user TT & C radio network access has the functions of network access authentication and ID authentication. This communication mechanism has high channel security and satisfies the requirement for high information security with combination with other information encryption techniques. Therefore, the study on UWB communication is very important for both military and commercial use.
This paper mainly presents the research results in terms of the following aspects:
1) Study on UWB pulse communication system, providing the implementation methods for that system
Based on the study on definitions and spectral characteristics of UWB signals, the modulation modes based on UWB spread spectrum signals, such as amplitude modulation (AM), delay phase modulation (PM) and PN-code combined modulation, and the demodulation modes for UWB signals are provided, the UWB receiving performance is computed and analyzed, and the schematic block diagram of engineering implementation for receiving is shown.
2) Study on ranging and acquisition of UWB signals, providing 2 fast acquisition methods.
This paper mainly studies the ranging method based on PN code combined impulse signals, analyzes the signal spectrums for PN-code impulse AM and delay PM, takes the AM signal as the example to analyze the full-coherent delay acquisition method, proposes two fast acquisition methods(square pulse phase acquisition first and then PN-code phase acquisition, and delay multiplication pulse phase acquisition first and then PN-code phase acquisition), calculates and compares the detection SNRs of several acquisition methods, and provides the principle block diagram for implementation of fast acquisition.
3) Study on high dynamic UWB signal, providing the concept of time variant template and the method of matrix vector correlation for the first time
With respect to the acquisition and tracking of high dynamic time variant UWB signals, in this paper a concept of time variant template and a method of matrix vector correlation are proposed for the first time, which establishes a matched filter framework in UWB-time-frequency domain based on fractional Fourier transform (FRFT) filter, solves the issue of detection for UWB time variant signal and satisfies the acquisition application under special conditions with UWB high dynamic. No the topic related material is found by searching in the literatures in China and abroad.
4) As for the precision tracking of UWB signal, an implementation method for UWB impulse delay lock loop is proposed.
Through theoretical calculation of loop tracking accuracy and performance under Gaussian white noise conditions, provided are the theoretical values of delay measurement accuracy for UWB impulse delay lock loop, and system simulation verification for multiple kinds of impulse signals is carried out. At last, the system simulation results of the hardware platform self-developed are compliant with the theoretical results. No this topic related report is found by searching in literatures in China and abroad.
5) Study on UWB multi-user operation and networking performance, proposing a calculation method for UWB multi-user positioning accuracy
This paper introduces the standards and protocols for civil WLAN, proposes a novel UWB multi-target covert TT & C system for long/medium-distance multi-user TT & C, provides two multi-user networking signal systems—TH-PPM and TH-PAM, performs engineering computation for generation, modulation and coherent acquisition methods of that signal and BER of multi-target TT & C transmission; carries out computational analysis for multi-target acquisition and demodulation; carries out computational analysis of the multi-user positioning accuracy of that signal; proposes a topology for UWB multi-target TT & C network; analyzes the networking security authentication process; at last, provides related conclusions.
6) As for UWB high-rate data transmission technology, two parallel modulation transmission methods with multiple PN codes and multiple Walsh functions are proposed, which can significantly increase transmission rate of UWB system and reduce inter-symbol interference and difficulty of practical engineering processing. In addition, this method is tested on test prototype. No this topic related report is found by searching in literatures in China and abroad.
7) Study on UWB radio wave propagation and multi-path receiving
The space propagation approach of impulse modulation signal isstudied; on the basis of comparison with traditional signal propagation approach, an impulse signal space propagation model is proposed for long/medium-distance communication. The research and simulations show that the impulse modulation signals used have good capability of space multi-path resistance and have much better performance than traditional spread spectrum communication signal.
8) As for UWB array signal space-time process, a novel method for composite weighted wideband spread spectrum array signal processing based on time domain analysis is proposed. For the first time, it is derived and proved that the delay measurement accuracy of an array system is the statistical average of that of all elements.
This method avoids complex frequency domain focus algorithm through composite weighting processing of group-delay of the array signal, phase and amplitude. Based on our creative study on UWB array signal processing, a simple UWB space-time array processing method easy for engineering implementation is proposed, which can further improve the anti-interference capability of system on the basis of the inherent anti-interference capability of UWB signal. For the first time, it is derived and proved that the delay measurement accuracy of an array system is the statistical average of that of all elements with a mathematical method. No this topic related report is found by searching in literatures in China and abroad.
9) Experimental study on UWB signal simulation and hardware platform
Multiple simulation tests are performed for UWB signal acquisition, tracking, data transmission, multi-user communication operation and multi-path channel. Generation, modulation and demodulation technology is implemented on the UWB signal hardware platform self-developed. A special UWB hardware platform and 670ps impulse signal are realized and modulation/demodulation experiments for 1Mbps data are performed. These UWB modulation/demodulation algorithms are developed by our own and have independent IPR.
引文
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[3] J. G. Proakis and M. Salehi, Communications System Engineering. Englewood Cliffs, NJ: Prentice Hall, Inc. 1994.
[4] J. T. Conroy, Spectral Characteristics of Monopulse Communication Signals. Illinois Institute of Technology, Department on Electrical and Computer Engineering, M. S. Thesis, Chicago, IL, 1997.
[5] Robert A. Scholt, "Multiple Access with Time-hopping Impulse Modulation" in Proc. Military Communication Conf., vol. 2, Boston, MA, Oct. 1993, pp. 447-450.
[6] Iacobucci, M. S.; Di Benedetto, M. -G.; De Nardis, L., Radio frequency interference issues in impulse radio multiple access communication systems, Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002, Page (s): 293-296
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[8] Liuqing Yang; Giannakis, GB., Impulse radio multiple access through ISI channels with multi-stage block-spreading , Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002 , Page (s) : 277 -281
[9] Hoctor, R.; Tomlinson, H., Delay-hopped transmitted-reference RF communications , Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002, Page (s) : 265 -269
[10] Lovelace, W. M.; Townsend, J.K., The effects of timing jitter on the performance of impulse radio, Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002, Page (s) : 251-254
[11] Romme, J.; Piazzo, L., On the power spectral density of time-hopping impulse radio, Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002, Page (s) : 241 -244
[12] Liuqing Yang; Giannakis, GB., Space-time coding for impulse radio, Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002 , Page (s) : 235-239
[13] Lijia Ge; Guangrong Yue; Affes, S., On the BER performance of pulse-position-modulation UWB radio in multipath channels, Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002 , Page (s) : 231-234
[ 14] Chunyu Bi; Hui, J.Y., Multiple access capacity for ultra-wide band radio with multi-antenna receivers , Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002 , Page (s) : 151-155
[15] Michael, LB.; Ghavami, M.; Kohno, R., Multiple pulse generator for ultra-wideband communication using Hermite polynomial based orthogonal pulses, Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002, Page (s) : 47 -51
[16]Taha, A.; Chugg, K.M., On designing the optimal template waveform for UWB impulse radio in the presence of multipath , Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002 , Page (s) : 41-45
[17] Corral, C.A.; Sibecas, S.; Emami, S.; Stratis, G, Pulse spectrum optimization for ultra-wideband communication, Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002 , Page (s) : 31 -35
[18]Eshima, K.; Hase, Y; Oomori, S.; Takahashi, F; Kohno, R., Performance analysis of interference between UWB and SS signals, Spread Spectrum Techniques and Applications, 2002 IEEE Seventh International Symposium on , Volume: 1 , 2002 , Page (s) : 59-63 vol.1
[19] Portugues, I.E.; Moore, P. J.; Glover, LA., Partial discharge localization for efficient radio spectrum management, Electrical Insulation and Dielectric Phenomena, 2002 Annual Report Conference on , 20-24 Oct. 2002 , Page (s) : 466-469
[20] Maggio, G. M.; Laney, D.; Lehmann, R; Larson, L., A multi-access scheme for UWB radio using pseudo-chaotic time hopping , Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002 , Page (s) : 225-229
[21] Muqaibel, A.; Woerner, B.; Riad, S., Application of multiuser detection techniques to impulse radio time hopping multiple access systems , Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002 , Page (s) : 169 -173
[22] Muqaibel, A.; Woerner, B.; Riad, S., M-ary UWB system using Walsh codes , Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002 Page (s) :37-40
[23] Iacobucci, M.S.; Di Benedetto, M.-G, Multiple access design for impulse radio communication systems , Communications, 2002. ICC 2002. IEEE International Conference on , Volume: 2 , 28 April-2 May 2002 , Page(s): 817-820 vol.2
[24]Yoon, Y.C.; Kohno, R., Optimum multi-user detection in ultra-wideband (UWB) multiple-access communication systems , Communications, 2002. ICC 2002. IEEE International Conference on , Volume: 2 , 28 April-2 May 2002 , Page (s) : 812-816 vol.2
[25] Xiaojing Huang; Yunxin Li, Performances of impulse train modulated ultra-wideband systems , Communications , 2002. ICC 2002. IEEE International Conference on , Volume: 2 , 28 April-2 May 2002, Page(s): 758-762 vol.2
[26] Liuqing Yang; Giannakis, G. B., Block-spreading codes for impulse radio multiple access through ISI channels, Communications, 2002. ICC 2002. IEEE International Conference on, Volume: 2 , 28 April-2 May 2002, Page (s): 807-811 vol.2
[27] Gerrits, J. F. M.; Farserotu, J. R., Wavelet generation circuit for UWB impulse radio applications Electronics Letters, Volume: 38 Issue: 25, 5 Dec. 2002 , Page(s): 1737-1738
[28] Liuqing Yang; Giannakis, G. B., Multistage block-spreading for impulse radio multiple access through ISI channels, Selected Areas in Communications, IEEE Journal on, Volume: 20 Issue: 9, Dec. 2002, Page(s): 1767-1777
[29] Lie-Liang Yang; Hanzo, L., Residue number system assisted fast frequency-hopped synchronous ultra-wideband spread-spectrum multiple-access: a design alternative to impulse radio, Selected Areas in Communications, IEEE Journal on, Volume: 20 Issue: 9 , Dec. 2002, Page(s): 1652-1663
[30] Lovelace, W. M.; Townsend, J. K., The effects of timing jitter and tracking on the performance of impulse radio, Selected Areas in Communications, IEEE Journal on, Volume: 20 Issue: 9, Dec. 2002, Page(s): 1646-1651
[31] 岳光荣，葛利嘉，超宽带无线电综述，解放军理工大学学报(自然科学版)，第3卷，第2期2002年4月，pp14-19．
[32] 严国荣，超宽带无线通信技术—UWB，《电声技术》2002年第12期
[33] 谷学敏 等 《航天无线电测控技术》 中国人民解放军国防科技大学，1984．8
[34] 陆大铨 《随机过程及其应用》 清华大学出版社，1986．8
[35] 张贤达 保铮 《非平稳信号分析与处理》国防工业出版社，2001
[1] J. T. Conroy, J. L. LoCicero, D. R. Ucci, "Communication Techniques Using Monopulse Waveforms", IEEE MILCOM' 1999, Vol2.31 October-3 November, Atlantic City, New Jersey, pp1181-1185,
[2] "PulsON@ Technology Overview", www.timedomain.com.
[3] J. G. Proakis and M. Salehi, Communications System Engineering. Englewood Cliffs, NJ: Prentice Hall, Inc. 1994.
[4] J. T. Conroy, Spectral Characteristics of Monopulse Communication Signals. Illinois Institute of Technology, Department on Electrical and Computer Engineering, M. S. Thesis, Chicago, IL, 1997.
[5] Robert A. Scholt, "Multiple Access with Time-hopping Impulse Modulation" in Proc. Military Communication Conf., vol. 2, Boston, MA, Oct. 1993, pp. 447-450.
[6] 王鹏毅 超宽带传输体制研究 无线电工程 Vol．34 No．11 Nov．2004 p3-4
[1] J. T. Conroy, J. L. LoCicero, D. R. Ucci, "Communication Techniques Using Monopulse Waveforms", IEEE MILCOM'1999, Vol2. 31 October-3 November, Atlantic City, New Jersey, pp1181-1185,
[2] Robert A. Scholt, "Multiple Access with Time-hopping Impulse Modulation" in Proc. Military Communication Conf., vol. 2, Boston, MA, Oct. 1993, pp. 447-450.
[3] "PulsON Technology Overview", www.timedomain.com.
[4] 王鹏毅 高动态扩频信号的捕获跟踪与解调 飞行器测控学报，Vol22．2003．2，pp34-36．
[5] J. T. Conroy, Spectral Characteristics of Monopulse Communication Signals. Illinois Institute of Technology, Department on Electrical and Computer Engineering, M. S. Thesis, Chicago, IL, 1997.
[6] 王鹏毅 伪码脉冲复合测距及其快捕方法 无线电工程Vol．35 No．2，Feb．2005 p20-22
[1] 张贤达 保铮 《非平稳信号分析与处理》 国防工业出版社，2001
[2] 张宏禹 《非平稳随机信号分析与处理》国防工业出版社，1999
[3] Almeida LB. The fractional Fourier transforms and time-frequency representations. IEEE Trans. Signal Processing, 1994, vol. 42, pp3084～3091
[4] Ozaktas HM, Barshan B, Mendlovic D, Onural L. Convolution, filtering and multiplexing in fractional Fourier domains and their relation to chirp and wavelet transforms. J. Opt. Soc. Amer. A, 1994, vol. 11, pp547～559
[5] W. Gugler, A. Springer, R. Weigel "A Chirp-Based Wideband Spread Spread Spectrum Modulation Technique for WLAN Applications " ISSSTA 2000, vol.1, pp83-87
[6] 王鹏毅 时变微弱扩频信号检测研究 飞行器测控学报 Vol．23 No．1，p55-57，Jun．2004：
[1] J. T. Conroy, J. L. LoCicero, D. R. Ucci, "Communication Techniques Using Monopulse Waveforms", IEEE MILCOM'1999, Vol2.31 October-3 November, Atlantic City, New Jersey, pp1181-1185,
[2] J. G. Proakis and M. Salehi, Communications System Engineering. Englewood Cliffs, NJ: Prentice Hall, Inc. 1994.
[3] J. T. Conroy, Spectral Characteristics of Monopulse Communication Signals. Illinois Institute of Technology, Department on Electrical and Computer Engineering, M. S. Thesis, Chicago, IL, 1997.
[4] Robert A. Scholt, "Multiple Access with Time-hopping Impulse Modulation" in Proc. Military Communication Conf., vol. 2, Boston, MA, Oct. 1993, pp. 447-450.
[5] [美]J．K．Holmes著，梁振兴等译．相干扩展频谱系统，北京：国防工业出版社，1991．
[6] 冲击脉冲精密定位技术研究 王鹏毅 无线电工程 Vol．35 No．3，Mar．2005 p29-31
[1] 张伟 无线局域网安全性研究 计算机工程 Vol28 No1 2002年1月 p180-182．
[2] Draft Standard IEEE802.11, "Wireless LAN", P802.11/D1, Dec. 1994.
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[4] 何礼，无线局域网及其安全机制，四川通信技术，第30卷第5期2000年10月 pp10-14
[5] 凌畅字等，应用802.1X标准部署安全的无线局域网，航空计算技术，第32 卷，第三期2002年9月 pp129-132
[6] J. Walker, "Unsafe at Any Key Size: An Analysis of the WEP Encapsulation." Intel Corporation, Oct 27, 2000.
[7] 王鹏毅 无线局域网及其安全分析 无线电工程 Vol．35 No．1，Jan．2005 p21-24
[8] Robert A. Scholt, "Multiple Access with Time-hopping Impulse Modulation" in Proc. Military Communication Conf., vol. 2, Boston, MA, Oct. 1993, pp. 447-450.
[9] Ziemer R E, Peterson R L. Digital Communications and Spread Spectrum Systems[M]. New York: Macmillan Publishing Company, 1985.
[10] 樊昌信等，通信原理，北京：国防工业出版社，1984
[11] J. T. Conroy, J. L. LoCicero, D. R. Ucci, "Communication Techniques Using Monopulse Waveforms", IEEE MILCOM'1999, Vol2. 31 October-3 November, Atlantic City, New Jersey, pp1181-1185,
[12] J. T. Conroy, Spectral Characteristics of Monopulse Communication Signals. Illinois Institute of Technology, Department on Electrical and Computer Engineering, M. S. Thesis, Chicago, IL, 1997.
[13] 牛伟等(王鹏毅为第四作者)著 《无线局域网》 人民邮电出版社 2003年9月
[14] 王鹏毅 冲击脉冲精密定位技术研究 无线电工程 Vol．35 No．3，Mar．2005 p29-31
[15] 王鹏毅 超宽带隐蔽测控组网新体制研究 2004年航天测控技术研讨会论文集 p231-236，厦门，Oct．2004
[16] 王鹏毅 TH-PAM超宽带多用户通信定位组网研究 第九届全国遥感遥测遥控学术研讨会论文集 p417-421，绵阳，Sep．2004
[17] Sony CFP document for IEEE P802.15 Working Group, 2003. Http://grouper.ieee.org/groups/802/15/pub/2003/May03/
[18] Intel CFP document for IEEE P802.15 Working Group, 2003. Http://grouper.ieee.org/groups/802/15/pub/2003/May03/
[1] Weiyu Xu; Yao, R.; Zihua Guo; Wenwu Zhu; Zucheng Zhou, "A Power Efficient M-ary Orthogonal Pulse Polarity Modulation for TH-UWB System Using Modified OVSF Codes", Global Telecommunications Conference, 2003. GLOBECOM'03. IEEE, Vol.1, pp436_440
[2] Eshima, K.; Hase, Y.; Oomori, S.; Takahashi, F.; Kohno, R, "M-ary UWB system using Walsh codes", 2002 IEEE Conference on Ultra Wideband Systems and Technologies, 2002. Digest of Papers. pp37-40
[3] Adachi, F.; Sawahashi, M.; Okawa, K. "Tree-structured generation of orthogonal spreading codes with different lengths for forward link of DS-CDMA mobile radio" Electronics Letters, 2nd January 1997 Vol.33 NO.1, pp27-28.
[4] J. T. Conroy, Spectral Characteristics of Monopulse Communication Signals. Illinois Institute of Technology, Department on Electrical and Computer Engineering, M. S. Thesis, Chicago, IL, 1997.
[5] Robert A. Scholt, "Multiple Access with Time-hopping Impulse Modulation" in Proc. Military Communication Conf., vol. 2, Boston, MA, Oct. 1993, pp. 447-450.
[6] [美]J．K．Holmes著，梁振兴等译．相干扩展频谱系统，北京：国防工业出版社， 1991．
[7] [美]Jhong Sam Lee等著，许希斌等译，CDMA系统工程手册，北京：人民邮电出版社，2001．
[1] 丹尼斯·罗迪著，张更新等译，卫星通信，北京：人民邮电出版社，2002
[2] 周月臣，移动通信工程设计，北京：人民邮电出版社，1994
[3] Robert A. Scholt, "Multiple Access with Time-hopping Impulse Modulation" in Proc. Military Communication Conf., vol. 2, Boston, MA, Oct. 1993, pp. 447-450.
[4] Ziemer R E, Peterson R L. Digital Communications and Spread Spectrum Systems[M]. New York: Macmillan Publishing Company, 1985.
[5] 樊昌信等，通信原理，北京：国防工业出版社，1984
[6] J. T. Conroy, J. L. LoCicero, D. R. Ucci, "Communication Techniques Using Monopulse Waveforms", IEEE MILCOM'1999, Vol2. 31 October-3 November, Atlantic City, New Jersey, pp1181-1185,
[7] J. T. Conroy, Spectral Characteristics of Monopulse Communication Signals. Illinois Institute of Technology, Department on Electrical and Computer Engineering, M. S. Thesis, Chicago, IL, 1997.
[8] K. Siwiak, A. Petroff, A path link Model for Ultra Wide Pulse Transmissions, Conference Proceedings of the IEEE VTC-2001, Rhodes, Greece, May 2001, pp1173-1175.
[1] J.B.L.Rao,T.C.Cheston,J.Y.cheo,M.G.Parent and P.K.Hughes, "Phased Arrays with Sub-array Architecture", 2000 IEEE International Conference on Phased Array Systems and Technology, pp453-456.
[2] Didier Cassereau,Mathias Fink,"The phased array technology application to time reversal in acoustics", 2000 IEEE International Conference on Phased Array Systems and Technology,pp461-464.
[3] Didier Cassereau/'Focusing with ultrasonic phased arrays-comparison between time delay laws and time reversal", 2000 IEEE International Conference on Phased Array Systems and Technology,pp465-468.
[4] Boryssenko A.,Prokhorenko V.,"Phased-arrays Effect in Antennas with Transient Excitation", 2000 IEEE International Conference on Phased Array Systems and Technology,pp469-472.
[2] "PulsON~@ Technology Overview", www.timedomain.com.
[3] J. G. Proakis and M. Salehi, Communications System Engineering. Englewood Cliffs, NJ: Prentice Hall, Inc. 1994.
[4] J. T. Conroy, Spectral Characteristics of Monopulse Communication Signals. Illinois Institute of Technology, Department on Electrical and Computer Engineering, M. S. Thesis, Chicago, IL, 1997.
[5] Robert A. Scholt, "Multiple Access with Time-hopping Impulse Modulation" in Proc. Military Communication Conf., vol. 2, Boston, MA, Oct. 1993, pp. 447-450.
[6] Iacobucci, M. S.; Di Benedetto, M. -G.; De Nardis, L., Radio frequency interference issues in impulse radio multiple access communication systems, Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002, Page (s): 293-296
[7] Taha, A.; Chugg, K. M.; Multipath diversity reception of wireless multiple access time-hopping digital impulse radio, Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on, 21-23 May 2002 , Page (s) : 283-287
[8] Liuqing Yang; Giannakis, GB., Impulse radio multiple access through ISI channels with multi-stage block-spreading , Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002 , Page (s) : 277 -281
[9] Hoctor, R.; Tomlinson, H., Delay-hopped transmitted-reference RF communications , Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002, Page (s) : 265 -269
[10] Lovelace, W. M.; Townsend, J.K., The effects of timing jitter on the performance of impulse radio, Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002, Page (s) : 251-254
[11] Romme, J.; Piazzo, L., On the power spectral density of time-hopping impulse radio, Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002, Page (s) : 241 -244
[12] Liuqing Yang; Giannakis, GB., Space-time coding for impulse radio, Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002 , Page (s) : 235-239
[13] Lijia Ge; Guangrong Yue; Affes, S., On the BER performance of pulse-position-modulation UWB radio in multipath channels, Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002 , Page (s) : 231-234
[ 14] Chunyu Bi; Hui, J.Y., Multiple access capacity for ultra-wide band radio with multi-antenna receivers , Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002 , Page (s) : 151-155
[15] Michael, LB.; Ghavami, M.; Kohno, R., Multiple pulse generator for ultra-wideband communication using Hermite polynomial based orthogonal pulses, Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002, Page (s) : 47 -51
[16]Taha, A.; Chugg, K.M., On designing the optimal template waveform for UWB impulse radio in the presence of multipath , Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002 , Page (s) : 41-45
[17] Corral, C.A.; Sibecas, S.; Emami, S.; Stratis, G, Pulse spectrum optimization for ultra-wideband communication, Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002 , Page (s) : 31 -35
[18]Eshima, K.; Hase, Y; Oomori, S.; Takahashi, F; Kohno, R., Performance analysis of interference between UWB and SS signals, Spread Spectrum Techniques and Applications, 2002 IEEE Seventh International Symposium on , Volume: 1 , 2002 , Page (s) : 59-63 vol.1
[19] Portugues, I.E.; Moore, P. J.; Glover, LA., Partial discharge localization for efficient radio spectrum management, Electrical Insulation and Dielectric Phenomena, 2002 Annual Report Conference on , 20-24 Oct. 2002 , Page (s) : 466-469
[20] Maggio, G. M.; Laney, D.; Lehmann, R; Larson, L., A multi-access scheme for UWB radio using pseudo-chaotic time hopping , Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002 , Page (s) : 225-229
[21] Muqaibel, A.; Woerner, B.; Riad, S., Application of multiuser detection techniques to impulse radio time hopping multiple access systems , Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002 , Page (s) : 169 -173
[22] Muqaibel, A.; Woerner, B.; Riad, S., M-ary UWB system using Walsh codes , Ultra Wideband Systems and Technologies, 2002. Digest of Papers. 2002 IEEE Conference on , 21-23 May 2002 Page (s) :37-40
[23] Iacobucci, M.S.; Di Benedetto, M.-G, Multiple access design for impulse radio communication systems , Communications, 2002. ICC 2002. IEEE International Conference on , Volume: 2 , 28 April-2 May 2002 , Page(s): 817-820 vol.2
[24]Yoon, Y.C.; Kohno, R., Optimum multi-user detection in ultra-wideband (UWB) multiple-access communication systems , Communications, 2002. ICC 2002. IEEE International Conference on , Volume: 2 , 28 April-2 May 2002 , Page (s) : 812-816 vol.2
[25] Xiaojing Huang; Yunxin Li, Performances of impulse train modulated ultra-wideband systems , Communications , 2002. ICC 2002. IEEE International Conference on , Volume: 2 , 28 April-2 May 2002, Page(s): 758-762 vol.2
[26] Liuqing Yang; Giannakis, G. B., Block-spreading codes for impulse radio multiple access through ISI channels, Communications, 2002. ICC 2002. IEEE International Conference on, Volume: 2 , 28 April-2 May 2002, Page (s): 807-811 vol.2
[27] Gerrits, J. F. M.; Farserotu, J. R., Wavelet generation circuit for UWB impulse radio applications Electronics Letters, Volume: 38 Issue: 25, 5 Dec. 2002 , Page(s): 1737-1738
[28] Liuqing Yang; Giannakis, G. B., Multistage block-spreading for impulse radio multiple access through ISI channels, Selected Areas in Communications, IEEE Journal on, Volume: 20 Issue: 9, Dec. 2002, Page(s): 1767-1777
[29] Lie-Liang Yang; Hanzo, L., Residue number system assisted fast frequency-hopped synchronous ultra-wideband spread-spectrum multiple-access: a design alternative to impulse radio, Selected Areas in Communications, IEEE Journal on, Volume: 20 Issue: 9 , Dec. 2002, Page(s): 1652-1663
[30] Lovelace, W. M.; Townsend, J. K., The effects of timing jitter and tracking on the performance of impulse radio, Selected Areas in Communications, IEEE Journal on, Volume: 20 Issue: 9, Dec. 2002, Page(s): 1646-1651
[31] 岳光荣，葛利嘉，超宽带无线电综述，解放军理工大学学报(自然科学版)，第3卷，第2期2002年4月，pp14-19．
[32] 严国荣，超宽带无线通信技术—UWB，《电声技术》2002年第12期
[33] 谷学敏 等 《航天无线电测控技术》 中国人民解放军国防科技大学，1984．8
[34] 陆大铨 《随机过程及其应用》 清华大学出版社，1986．8
[35] 张贤达 保铮 《非平稳信号分析与处理》国防工业出版社，2001
[1] J. T. Conroy, J. L. LoCicero, D. R. Ucci, "Communication Techniques Using Monopulse Waveforms", IEEE MILCOM' 1999, Vol2.31 October-3 November, Atlantic City, New Jersey, pp1181-1185,
[2] "PulsON@ Technology Overview", www.timedomain.com.
[3] J. G. Proakis and M. Salehi, Communications System Engineering. Englewood Cliffs, NJ: Prentice Hall, Inc. 1994.
[4] J. T. Conroy, Spectral Characteristics of Monopulse Communication Signals. Illinois Institute of Technology, Department on Electrical and Computer Engineering, M. S. Thesis, Chicago, IL, 1997.
[5] Robert A. Scholt, "Multiple Access with Time-hopping Impulse Modulation" in Proc. Military Communication Conf., vol. 2, Boston, MA, Oct. 1993, pp. 447-450.
[6] 王鹏毅 超宽带传输体制研究 无线电工程 Vol．34 No．11 Nov．2004 p3-4
[1] J. T. Conroy, J. L. LoCicero, D. R. Ucci, "Communication Techniques Using Monopulse Waveforms", IEEE MILCOM'1999, Vol2. 31 October-3 November, Atlantic City, New Jersey, pp1181-1185,
[2] Robert A. Scholt, "Multiple Access with Time-hopping Impulse Modulation" in Proc. Military Communication Conf., vol. 2, Boston, MA, Oct. 1993, pp. 447-450.
[3] "PulsON Technology Overview", www.timedomain.com.
[4] 王鹏毅 高动态扩频信号的捕获跟踪与解调 飞行器测控学报，Vol22．2003．2，pp34-36．
[5] J. T. Conroy, Spectral Characteristics of Monopulse Communication Signals. Illinois Institute of Technology, Department on Electrical and Computer Engineering, M. S. Thesis, Chicago, IL, 1997.
[6] 王鹏毅 伪码脉冲复合测距及其快捕方法 无线电工程Vol．35 No．2，Feb．2005 p20-22
[1] 张贤达 保铮 《非平稳信号分析与处理》 国防工业出版社，2001
[2] 张宏禹 《非平稳随机信号分析与处理》国防工业出版社，1999
[3] Almeida LB. The fractional Fourier transforms and time-frequency representations. IEEE Trans. Signal Processing, 1994, vol. 42, pp3084～3091
[4] Ozaktas HM, Barshan B, Mendlovic D, Onural L. Convolution, filtering and multiplexing in fractional Fourier domains and their relation to chirp and wavelet transforms. J. Opt. Soc. Amer. A, 1994, vol. 11, pp547～559
[5] W. Gugler, A. Springer, R. Weigel "A Chirp-Based Wideband Spread Spread Spectrum Modulation Technique for WLAN Applications " ISSSTA 2000, vol.1, pp83-87
[6] 王鹏毅 时变微弱扩频信号检测研究 飞行器测控学报 Vol．23 No．1，p55-57，Jun．2004：
[1] J. T. Conroy, J. L. LoCicero, D. R. Ucci, "Communication Techniques Using Monopulse Waveforms", IEEE MILCOM'1999, Vol2.31 October-3 November, Atlantic City, New Jersey, pp1181-1185,
[2] J. G. Proakis and M. Salehi, Communications System Engineering. Englewood Cliffs, NJ: Prentice Hall, Inc. 1994.
[3] J. T. Conroy, Spectral Characteristics of Monopulse Communication Signals. Illinois Institute of Technology, Department on Electrical and Computer Engineering, M. S. Thesis, Chicago, IL, 1997.
[4] Robert A. Scholt, "Multiple Access with Time-hopping Impulse Modulation" in Proc. Military Communication Conf., vol. 2, Boston, MA, Oct. 1993, pp. 447-450.
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[1] Weiyu Xu; Yao, R.; Zihua Guo; Wenwu Zhu; Zucheng Zhou, "A Power Efficient M-ary Orthogonal Pulse Polarity Modulation for TH-UWB System Using Modified OVSF Codes", Global Telecommunications Conference, 2003. GLOBECOM'03. IEEE, Vol.1, pp436_440
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[1] J.B.L.Rao,T.C.Cheston,J.Y.cheo,M.G.Parent and P.K.Hughes, "Phased Arrays with Sub-array Architecture", 2000 IEEE International Conference on Phased Array Systems and Technology, pp453-456.
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[3] Didier Cassereau/'Focusing with ultrasonic phased arrays-comparison between time delay laws and time reversal", 2000 IEEE International Conference on Phased Array Systems and Technology,pp465-468.
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