多种失配状态并存下双线阵左右舷分辨性能研究
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- 英文论文题名：The study of port-starboard discrimination for twin-line array when coexistence of a variety of mismatched state
- 论文作者：吴祖勇 ; 张文 ; 代光华 ; 程壮
- 英文论文作者：WU Zu-yong ; ZHANG Wen ; DAI Guang-hua ; CHENG Zhuang ; National University of Defense Technology ; Institute of Marine Science and Engineering ; State Key Laboratory of Acoustics ; Institute of Acoustics ; Chinese Academy of Sciences
- 年：2016
- 作者机构：国防科学技术大学海洋科学与工程研究院;中国科学院声学研究所声场声信息国家重点实验室;
- 论文关键词：双线阵 ; 阵列失配 ; 相关系数
- 英文论文关键词：twin-line array ; array mismatch ; correlation coefficient
- 会议召开时间：2016-10-28
- 会议录名称：2016年全国声学学术会议论文集
- 语种：中文
- 分类号：TB56
- 学会代码：OGSM
- 会议名称：2016年全国声学学术会议
- 会议地点：中国湖北武汉
- 主办单位：中国声学学会
- 学会名称：中国声学学会
- 页数：4
- 文件大小：732k
- 原文格式：D
- 会议级别：全国
摘要
双线阵具有区分左右舷模糊的特点,但存在阵列失配时,会出现左右舷误判问题。本文在分析双线阵首阵元位置失配以及阵间距失配两种失配状态的基础上,首次分析研究了阵元位置失配对左右舷分辨性能的影响,以及在双线阵同时存在多种失配状态(首阵元位置失配、阵间距失配以及阵元位置失配)时对左右舷分辨性能的影响。研究表明,阵元位置失配对左右舷分辨性能的影响较小;在多种失配状态并存时,对于单目标会出现左右舷模糊,本文提出双线阵首阵元相关系数比较方法,相关系数值较大的角度可判断为目标方位角,解决了多种失配状态并存下双线阵左右舷模糊问题。仿真表明,双线阵首阵元相关系数比较方法可以判断单目标的入射方位角,有效抑制多种失配状态并存下双线阵左右舷模糊问题。
Twin-line array has the feature of distinguishing port-starboard, but it will have misjudgment problem of portstarboard discrimination when the array mismatch. Based on the analysis of the first array sensor position mismatch and the array spacing mismatch, this paper initial analysis the effect on port-starboard discrimination when existing sensor position mismatch, and coexist a variety of mismatched state(including the first array sensor position mismatch、the array spacing mismatch and sensor position mismatch). Studies have shown that the sensor position mismatch is less effect the performance of port-starboard discrimination. When coexisting a variety of mismatched states, it will appear port-starboard blurred for single target. This paper present the first array sensor correlation coefficient comparison method,the angle of larger correlation coefficient can be determined to the target azimuth, which solving the problem of port-starboard blurred when coexisting a variety of mismatched states. Simulation results show that the first array sensor correlation coefficient comparison method can determine the azimuth of single target, inhibiting the port-starboard blurred effectively when coexisting a variety of mismatched states.
Twin-line array has the feature of distinguishing port-starboard, but it will have misjudgment problem of portstarboard discrimination when the array mismatch. Based on the analysis of the first array sensor position mismatch and the array spacing mismatch, this paper initial analysis the effect on port-starboard discrimination when existing sensor position mismatch, and coexist a variety of mismatched state(including the first array sensor position mismatch、the array spacing mismatch and sensor position mismatch). Studies have shown that the sensor position mismatch is less effect the performance of port-starboard discrimination. When coexisting a variety of mismatched states, it will appear port-starboard blurred for single target. This paper present the first array sensor correlation coefficient comparison method,the angle of larger correlation coefficient can be determined to the target azimuth, which solving the problem of port-starboard blurred when coexisting a variety of mismatched states. Simulation results show that the first array sensor correlation coefficient comparison method can determine the azimuth of single target, inhibiting the port-starboard blurred effectively when coexisting a variety of mismatched states.
引文
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[8]李启虎.声呐信号处理引论第二版[M].北京:科学出版社,2012
[2]李宇等.被动合成孔径的非对称双线阵相位校正方法研究[J].声学学报,2007,32(3):264-269.
[3]王华奎等.失配状态下的双线阵波束形成研究[J].声学学报,2007,32(2):158-164.
[4]李启虎.用双线阵区分左右舷目标的延时估计方法及其实现[J].声学学报,2006,31(6):481-484.
[5]李启虎.双线阵左右舷目标分辨性能的初步分析[J].声学学报,2006,31(5):385-388.
[6]李启虎.数字式声呐设计原理[M].安徽:安徽教育出版社,2002.
[7]张宾等.阵形畸变对拖曳双线阵左右舷分辨性能的影响[J].声学学报,2008,33(4):294-299.
[8]李启虎.声呐信号处理引论第二版[M].北京:科学出版社,2012