MIMO雷达等效相位中心误差分析

王怀军; 朱宇涛; 许红波; 粟毅

doi:10.3724/SP.J.1146.2009.01146

MIMO雷达等效相位中心误差分析

doi: 10.3724/SP.J.1146.2009.01146

基金项目:

国家部委基金和国家自然科学基金(60602022)资助课题

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出版历程
- 收稿日期: 2009-08-28
- 修回日期: 2009-12-09
- 刊出日期: 2010-08-19

Analysis of Displaced Phase Center Error in MIMO Radar

摘要

摘要: 为便于MIMO (Multiple-Input Multiple-Output) 雷达在接收端相干处理多通道回波数据，该文首先基于相位中心近似来简化MIMO雷达信号模型。以产生等效相位中心误差为代价，将MIMO雷达的多收发阵列结构转化成为收发同置的单站形式。通过分析等效相位中心与收发阵元之间的几何关系，解析描述了等效相位中心误差。而后对等效相位中心误差进行了理论分析，推导出一些与误差校正有关的基本性质。针对收发阵元间距的不同取值范围，设计了相应的等效相位中心误差校正表示式。最后利用数值仿真实验完成了等效相位中心误差分析有效性的定量评估。
- MIMO雷达 /
- 相位中心近似 /
- 等效相位中心
Abstract: In order to process the multi-channel received data coherently in a convenient way, this paper simplifies MIMO (Multiple-Input Multiple-Output) radar signal model using phase center approximation, firstly. The multiple-transmit multiple-receive array architecture of MIMO radar is transformed into monostatic situation at the cost of causing displaced phase center error. Through the geometry of phase center approximation, definition of displaced phase center error is obtained. Displaced phase center error is analyzed in depth and some basic properties related to error correction are derived. Error correction expression of displaced phase center is designed according to the extent of space between receive and transmit phase center. Finally, the numerical experiments are provided to demonstrate the effectiveness of the theoretical analysis in this paper.
- MIMO radar /
- Phase center approximation /
- Displaced phase center

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参考文献(1)

Bliss D W and Forsythe K W. Multiple-input multipleoutput(MIMO) radar and imaging: degrees of freedom andresolution. Conference Record of the Thirty-SeventhAsilomar Conference on Signals, Systems and Computers,Pacific Grove, CA, Nov. 2003: 54-59.[2]Li J, Stoica P, and Zheng X. Signal synthesis and receiverdesign for MIMO radar imaging[J].IEEE Transactions onSignal Processing.2008, 56(8):3959-3968[3]Haimovich A M, Blum R S, and Cimini L J. MIMO radarwith widely separated antennas[J].IEEE Signal ProcessingMagazine.2008, 25(1):116-129[4]Li J and Stoica P. MIMO radar with colocated antennas.IEEE Signal Processing Magazine, 2007, 24(5): 106-114.[5]Chen C Y and Vaidyanathan P P. MIMO radar space-timeadaptive processing using prolate spheroidal wave functions[J].IEEE Transactions on Signal Processing.2008, 56(2):623-635[6]Li J, Stoica P, Xu L Z, and Roberts W. On parameteridentifiability of MIMO radar[J].IEEE Signal ProcessingLetters.2007, 14(12):968-971[7]王怀军, 粟毅, 朱宇涛, 等. 基于空间谱域填充的MIMO 雷达成像研究. 电子学报, 2009, 37(6): 1242-1246.[8]Robey F C, Coutts S, and Weikle D, et al.. MIMO radartheory and experimental results. Conference Record of theThirty-Eighth Asilomar Conference on Signals, System andComputers, Pacific Grove, CA, Nov. 2004: 300-304.[9]Bekkerman I and Tabrikian J. Target detection andlocalization using MIMO radars and sonars[J].IEEETransactions on Signal Processing.2006, 54(10):3873-3883[10]Bellettini A and Pinto M A. Theoretical accuracy ofsynthetic aperture sonar micronavigation using a displacedphase center antenna[J].IEEE Journal of Oceanic Engineering.2002, 27(4):780-789[11]保铮, 邢孟道, 王彤. 雷达成像技术. 北京: 电子工业出版社,2005: 51-56.

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