分布式全相参雷达相干参数估计及相参性能分析
Coherent parameters estimation and coherent performance analysis for distributed aperture coherent radar
- 通信学报 2015年36卷第3期 页码：130-138
- 作者机构：
电子工程学院，安徽 合肥 230037
- 作者简介：
[ "宋靖（1986-），男，安徽巢湖人，电子工程学院博士生，主要研究方向为MIMO 雷达信号处理及分布式雷达信号处理。" ]
[ "张剑云（1963-），男，浙江龙泉人，博士，电子工程学院教授、博士生导师，主要研究方向为雷达及目标环境模拟、雷达信号处理、高速信号处理。" ]
[ "张文刚（1987-），男，陕西西安人，硕士，电子工程学院讲师，主要研究方向为阵列信号处理。" ]
- 基金信息：
DOI：10.11959/j.issn.1000-436x.2015067
中图分类号： TN958-
网络首发：2015-03，
纸质出版：2015-03-25
- 稿件说明：
移动端阅览
宋靖, 张剑云, 张文刚. 分布式全相参雷达相干参数估计及相参性能分析[J]. 通信学报, 2015,36(3):130-138.
Jing SONG, Jian-yun ZHANG, Wen-gang ZHANG. Coherent parameters estimation and coherent performance analysis for distributed aperture coherent radar[J]. Journal of Communications, 2015, 36(3): 130-138.
宋靖, 张剑云, 张文刚. 分布式全相参雷达相干参数估计及相参性能分析[J]. 通信学报, 2015,36(3):130-138. DOI： 10.11959/j.issn.1000-436x.2015067.
Jing SONG, Jian-yun ZHANG, Wen-gang ZHANG. Coherent parameters estimation and coherent performance analysis for distributed aperture coherent radar[J]. Journal of Communications, 2015, 36(3): 130-138. DOI： 10.11959/j.issn.1000-436x.2015067.
摘要
针对一般结构的分布式全相参雷达，首先推导了包括时延差及“和相位差”的相干参数估计的克拉美—罗界（CRB）闭式解；然后考虑时延和相位补偿误差同时存在时，分析了全相参模式下的输出信噪比增益（oSNRg），基于相干参数估计的CRB，给出了oSNRg的上界的数值解。结论表明，“和相位差”的CRB与信号载频及有效带宽均无关；oSNRg随着发射天线数的增加而提高；而增加接收天线数，能否提高oSNRg取决于输入信噪比大小，较大时则oSNRg随之提高，较小时反而随之下降。最后仿真实验验证了研究结论的正确性。
Abstract
The closed-form CRB (cramer-rao bounds) of the coherent parameters estimation
which include time delay differences and total phase differences
are derived for the distributed aperture coherent radar with general architecture firstly. Then under the assumption that time delay and phase synchronization errors are all existing
the performance bound of oSNRg (output signal-to-noise ratio gain) is developed based on the aforementioned CRB (Cramer-rao bounds). It is concluded that: the CRB of total phase differences is independent on the carrier frequency and effective bandwidth. More transmitters give higher oSNRg. However
as the number of receivers increase
the oSNRg gradually improve with the input SNR being high sufficiently
and worsen with the input SNR being low. Finally
the numerical examples dem-onstrate the validity of the theoretical results.
关键词
Keywords
references
AHLGREN G W . Next Generation Radar Concept Definition Team Final Report [R ] . MIT Lincoln Laboratory , 2003 .
CUOMO K M , COUTTS S D , MCHARG J C , et al . Wideband Aper-ture Coherence Processing for Next Generation Radar (NexGen) [R ] . MIT Lincoln Laboratory , 2004 . 11 - 16 .
COUTTS S D , CUOMO K M , MCHARG J C , et al . Distributed co-herent aperture measurements for next generation BMD radar [A ] . Fourth IEEE Workshop on Sensor Array and Multichannel Processing [C ] . Walthma, MA, USA , 2006 . 390 - 393 .
BROOKNER E . Phased-array and radar astounding breakthroughs-an update [A ] . IEEE Radar Conference [C ] . 2008 . 1 - 6 .
FLETCHER A , ROBEY F . Performance bounds for adaptive coher-ence of sparse array radar [A ] . The 11th Conference Adaptive Sensors Array Processing [C ] . MIT Lincoln Laboratory, Lexington, MA, USA , 2003 . 290 - 293 .
曾涛 ， 殷丕磊 ， 杨小鹏 等 ． 分布式全相参雷达系统时间与相位同步方案研究 [J ] ． 雷达学报 ， 2013 , 2 ( 1 ): 105 - 110 .
ZENG T , YIN P L , YANG X P , et al . Time and phase synchronization for distributed aperture coherent radar [J ] . Journal of Radars , 2013 , 2 ( 1 ): 105 - 110 .
殷丕磊 ， 杨小鹏 ， 曾涛 ． 分布式全相参雷达的相位差跟踪技术 [J ] . 信号处理 ， 2013 , 29 ( 3 ): 313 - 318 .
YIN P L , YANG X P , ZENG T . Tracking technology of phase differ-ence for distributed aperture radar [J ] . Journal of Signal Processing , 2013 , 29 ( 3 ): 313 - 318 .
HONG W G , ZHE C , SHU L W , et al . Study on distributed aperture coherence synthesizing radar with several experiment results [A ] . IEEE Radar Conference [C ] . 2011 . 84 - 86 .
SUN P L , TANG J , HE Q , et al . Cramer-rao bound of parameters estimation and coherence performance for next generation radar [J ] . IET Radar Sonar Navigation , 2013 , 7 ( 5 ): 553 - 567 .
TANG X W , TANG J , HE Q , et al . Cramer-rao bounds and coherence performance analysis for next generation radar with pulse trains [J ] . Sensor , 2013 , 13 ( 1 ): 5347 - 5367 .
HE Q , BLUM R S , GODRICH H , et al . Target velocity estimation and antenna placement for MIMO radar with widely separated antennas [J ] . IEEE Journal of Selected Topics in Signal Processing , 2010 , 4 ( 1 ): 79 - 100 .
HE Q , BLUM R S , HAIMOVICH A M . Noncoherent MIMO radar for location and velocity estimation: more antennas means better performance [J ] . IEEE Transactions on Signal Processing , 2010 , 58 ( 7 ): 3661 - 3680 .
WEI C M , HE Q , BLUM R S . Cramer–rao bound for joint location and velocity estimation in multi-target non-coherent MIMO radars [A ] . Proceedings of 44th Conference on Information Science Systems [C ] . Princeton, NJ, USA , 2010 . 1 - 6 .
HE Q , BLUM R S . Cramer-rao bound for MIMO radar target localiza-tion with phase errors [J ] . IEEE Signal Processing Letters , 2010 , 17 ( 1 ): 83 - 86 .
GODRICH H , HAIMOVICH A M . Localization performance of coher-ent MIMO radar systems subject to phase synchronization errors [A ] . Proceeding of Fourth ISCCSP [C ] . Limassol, Cyprus , 2010 . 1 - 5 .
YANG Z , WU Z , YIN Z , et al . Hybrid radar emitter recognition based on rough k-means classifier and relevance vector machine [J ] . Sensors , 2013 , 13 ( 1 ): 848 - 864 .
KAY S M . Fundamentals of Statistical Signal Processing Volume I:Estimation Theory [M ] . NJ: Prentice Hall, Upper Saddle River , 1993 .
ZHANG X D . Matrix Analysis and Applications [M ] . Beijing : Tsinghua University Press , 2004 .
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