基于镜频抑制零差探测的全光纤测风激光雷达系统
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摘要
相干多普勒测风激光雷达多采用外差技术来获得大气风场在雷达径向方向上的速度大小和正负.本文基于镜频抑制技术,使用全光纤90°相位控制器研制了连续相干多普勒测风激光雷达系统.该系统通过对本振光或接收信号进行相位控制,得到正交的IQ信号,采用镜频抑制技术,探测得到径向风速的大小和正负,相对于使用外差技术的相干多普勒激光雷达系统,该系统具有信噪比更高、雷达存储能力更强、在相同的ADC采样速率下测速范围更大等特点.文中最后通过与风速计的大量对比试验,进一步对连续相干多普勒测风激光雷达系统的数据的可信性进行了验证.实验结果表明,该系统测得的风向正负与风速计完全一致,风速大小的偏差为-0.03m/s,标准差为0.63m/s,具有较高的探测精度.
At present,most of coherent Doppler lidar adopts heterodyne technique to obtain atmospheric velocity and direction in the radial direction of the radar.In this paper,a continuous all fiber Doppler wind lidar system was developed based on image-reject homodyne technology and using integrated 90°optical hybrid receiver.The IQ cross signal was got through the phase control of the local or receiving signal,and the radial wind was detected based on the image-reject homodyne technology.Compared with the lidar using heterodyne technique,this lidar presents some advantages,including higher signal to noise,stronger radar storage,greater speed range at the same ADC sample rate and so on.In the end,a lot of comparative experiments were implemented to verify the credibility of all fiber Doppler wind lidar.The results show that thissystem has high detection accuracy,the wind direction goes all the way with the anemometer,the wind speed bias is of-0.03 m/s and standard deviation is of 0.63 m/s.
At present,most of coherent Doppler lidar adopts heterodyne technique to obtain atmospheric velocity and direction in the radial direction of the radar.In this paper,a continuous all fiber Doppler wind lidar system was developed based on image-reject homodyne technology and using integrated 90°optical hybrid receiver.The IQ cross signal was got through the phase control of the local or receiving signal,and the radial wind was detected based on the image-reject homodyne technology.Compared with the lidar using heterodyne technique,this lidar presents some advantages,including higher signal to noise,stronger radar storage,greater speed range at the same ADC sample rate and so on.In the end,a lot of comparative experiments were implemented to verify the credibility of all fiber Doppler wind lidar.The results show that thissystem has high detection accuracy,the wind direction goes all the way with the anemometer,the wind speed bias is of-0.03 m/s and standard deviation is of 0.63 m/s.
引文
[1]陈玉宝,高玉春,刘秉义,等.基于切比雪夫方法的多普勒激光雷达高空风场垂直探测精度的评估分析[J].热带气象学报,2014,30(2):465-483.Chen Yubao,Gao Yuchun,Liu Bingyi.et al.The assessment and analysis of the upper wind data measured by the Doppler lidar based on the Chebyshev approaching function[J].Journal of Tropical Meteorology,2014,30(2):465-483.(in Chinese)
[2]Hannon S M,Henderson S W,Thomson J A L,et al.Autonomous lidar wind field sensor:performance predictions[C]∥Proceedings of SPIE’s 1996International Symposium on Optical Science,Engineering and Instrumentation.[S.l.]:SPIE,1996,76.
[3]Wchter M M P,Mücke T,Peinke J,et al.An eight month test campaign of the Qineteq ZephIR system:preliminary results[J].Meteorologische Zeitschrift,2007,16(5):479:489.
[4]Wchter M,Milan P,Mücke T,et al.Power performance of wind energy converters characterized as stochastic process:applications of the Langevin power curve[J].Wind Energy,2011,14(6):711-717.
[5]Ando T,Kameyama S,Hirano Y.All-fiber coherent Doppler LIDAR technologies at Mitsubishi electric corporation[J].Top Conference Series:Earth and Environmental Science,2008,1(1):32-36.
[6]Abari C F,Pedersen A T,Mann J,et al.An all-fiber image-reject homodyne coherent Doppler wind lidar[J].Optics Express,2014,22(21):25880-25894.
[7]Pedersen A T,Abari C F,Mann J,et al.Theoretical and experimental signal-to-noise ratio assessment in new direction sensing continuous-wave Doppler lidar[J].Journal of Physics:Conference Series,2014,524(1):48-52.
[8]Fu Yang,Yan He,Jianhua Shang,et al.Development of an all-fiber heterodyne lidar for range and velocity measurements[J].Chinese Optics Letters,2010,8(7):713-716.
[9]Ren Zhu,Juntao Wang,Jun Zhou,et al.Singlefrequency high-energy Yb-doped pulsed all-fiber laser[J].Chinese Optics Letters,2012,10(9):091402-1-091402-4.
[10]竹孝鹏,刘继桥,刁伟峰,等.相干多普勒测风激光雷达研究[J].红外,2012,33(2):8-12.Zhu Xiaopeng,Liu Jiqiao,Diao Weifeng,et al.Study of coherent Doppler lidar system[J].Infrared,2012,33(2):8-12.(in Chinese)
[11]高龙,王春晖,李彦超,等.1.55μm相干激光测风雷达平探测接收实验[J].光子学报,2010,39(6):1064-1069.Gao Long,Wang Chunhui,Li Yanchao.et al.Investigation of balanced detection and receiver for 1.55μm coherent wind lidar[J].Acta Photonica Sinica,2010,39(6):1064-1069.(in Chinese)
[12]王希涛.全光纤激光相干测速技术研究[D].青岛:中国海洋大学,2011.Wang Xitao.The research of all-fiber laser heterodyne detection for velocity measurement[D].Qingdao:Ocean University of China,2011.(in Chinese)
[13]王建银.连续外差激光多普勒测风雷达[D].成都:四川大学,2007.Wang Jianyin.Continuous-wave heterodyne laser Doppler anemometer[D].Chengdu:Sichuan University,2007.(in Chinese)
[14]冯力天,郭弘其,陈涌,等.1.55μm全光纤多普勒测风雷达系统与试验[J].红外与激光工程,2011,40(5):844-847.Feng Litian,Guo Hongqi,Chen Yong,et al.Experiment of all fiber Doppler lidar at 1.55μm[J].Infrared and Laser Engineering,2011,40(5):844-847.(in Chinese)
[15]李冬梅,郑永超,潘静岩,等.相干多普勒激光测风雷达系统研究[J].光学技术,2010,36(6):880-884.Li Dongmei,Zheng Yongchao,Pan Jingyan,et al.Index system of coherent Doppler wind lidar[J].Optical Tchnique,2010,36(6):880-884.(in Chinese)
[16]Qi Hu,Rodrigo P J,Iversen T F,et al.Investigation of spherical aberration effects on coherent lidar performance[J].Optics Express,2013,21(22):25670-25676.
[17]Kameyama S.Development of fiber-based LIDAR systems for sensing atmospheric wind and carbon dioxide concentration[D].Chiba:Chiba University,2011.
[18]步志超.相干测风激光雷达系统设计及数据处理算法研究[D].北京:北京理工大学,2014.Bu Zhichao.Study on the system design and data processing algorithm for coherent Doppler wind lidar[D].Beijing:Beijing Institute of Technology,2014.(in Chinese)
[19]Kameyama S,Ando T,Asaka K,et al.Compact allfiber pulsed coherent Doppler lidar system for wind sensing[J].Applied Optics,2007,46(11):1953-1962.
[20]周炳琨.激光原理[M].北京:国防工业出版社,2009.Zhou Bingkun.Laser principle[M].Beijing:National Defense Industry Press,2009.(in Chinese)
[2]Hannon S M,Henderson S W,Thomson J A L,et al.Autonomous lidar wind field sensor:performance predictions[C]∥Proceedings of SPIE’s 1996International Symposium on Optical Science,Engineering and Instrumentation.[S.l.]:SPIE,1996,76.
[3]Wchter M M P,Mücke T,Peinke J,et al.An eight month test campaign of the Qineteq ZephIR system:preliminary results[J].Meteorologische Zeitschrift,2007,16(5):479:489.
[4]Wchter M,Milan P,Mücke T,et al.Power performance of wind energy converters characterized as stochastic process:applications of the Langevin power curve[J].Wind Energy,2011,14(6):711-717.
[5]Ando T,Kameyama S,Hirano Y.All-fiber coherent Doppler LIDAR technologies at Mitsubishi electric corporation[J].Top Conference Series:Earth and Environmental Science,2008,1(1):32-36.
[6]Abari C F,Pedersen A T,Mann J,et al.An all-fiber image-reject homodyne coherent Doppler wind lidar[J].Optics Express,2014,22(21):25880-25894.
[7]Pedersen A T,Abari C F,Mann J,et al.Theoretical and experimental signal-to-noise ratio assessment in new direction sensing continuous-wave Doppler lidar[J].Journal of Physics:Conference Series,2014,524(1):48-52.
[8]Fu Yang,Yan He,Jianhua Shang,et al.Development of an all-fiber heterodyne lidar for range and velocity measurements[J].Chinese Optics Letters,2010,8(7):713-716.
[9]Ren Zhu,Juntao Wang,Jun Zhou,et al.Singlefrequency high-energy Yb-doped pulsed all-fiber laser[J].Chinese Optics Letters,2012,10(9):091402-1-091402-4.
[10]竹孝鹏,刘继桥,刁伟峰,等.相干多普勒测风激光雷达研究[J].红外,2012,33(2):8-12.Zhu Xiaopeng,Liu Jiqiao,Diao Weifeng,et al.Study of coherent Doppler lidar system[J].Infrared,2012,33(2):8-12.(in Chinese)
[11]高龙,王春晖,李彦超,等.1.55μm相干激光测风雷达平探测接收实验[J].光子学报,2010,39(6):1064-1069.Gao Long,Wang Chunhui,Li Yanchao.et al.Investigation of balanced detection and receiver for 1.55μm coherent wind lidar[J].Acta Photonica Sinica,2010,39(6):1064-1069.(in Chinese)
[12]王希涛.全光纤激光相干测速技术研究[D].青岛:中国海洋大学,2011.Wang Xitao.The research of all-fiber laser heterodyne detection for velocity measurement[D].Qingdao:Ocean University of China,2011.(in Chinese)
[13]王建银.连续外差激光多普勒测风雷达[D].成都:四川大学,2007.Wang Jianyin.Continuous-wave heterodyne laser Doppler anemometer[D].Chengdu:Sichuan University,2007.(in Chinese)
[14]冯力天,郭弘其,陈涌,等.1.55μm全光纤多普勒测风雷达系统与试验[J].红外与激光工程,2011,40(5):844-847.Feng Litian,Guo Hongqi,Chen Yong,et al.Experiment of all fiber Doppler lidar at 1.55μm[J].Infrared and Laser Engineering,2011,40(5):844-847.(in Chinese)
[15]李冬梅,郑永超,潘静岩,等.相干多普勒激光测风雷达系统研究[J].光学技术,2010,36(6):880-884.Li Dongmei,Zheng Yongchao,Pan Jingyan,et al.Index system of coherent Doppler wind lidar[J].Optical Tchnique,2010,36(6):880-884.(in Chinese)
[16]Qi Hu,Rodrigo P J,Iversen T F,et al.Investigation of spherical aberration effects on coherent lidar performance[J].Optics Express,2013,21(22):25670-25676.
[17]Kameyama S.Development of fiber-based LIDAR systems for sensing atmospheric wind and carbon dioxide concentration[D].Chiba:Chiba University,2011.
[18]步志超.相干测风激光雷达系统设计及数据处理算法研究[D].北京:北京理工大学,2014.Bu Zhichao.Study on the system design and data processing algorithm for coherent Doppler wind lidar[D].Beijing:Beijing Institute of Technology,2014.(in Chinese)
[19]Kameyama S,Ando T,Asaka K,et al.Compact allfiber pulsed coherent Doppler lidar system for wind sensing[J].Applied Optics,2007,46(11):1953-1962.
[20]周炳琨.激光原理[M].北京:国防工业出版社,2009.Zhou Bingkun.Laser principle[M].Beijing:National Defense Industry Press,2009.(in Chinese)