Sensitivity of MIMO STAP Radar with Waveform Diversity

被引:3
作者
Sun Jinping [1 ]
Wang Guohua [2 ]
Liu Desheng [3 ]
机构
[1] Beijing Univ Aeronaut & Astronaut, Sch Elect & Informat Engn, Beijing 100191, Peoples R China
[2] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore
[3] Beijing Univ Aeronaut & Astronaut, Sch Automat Sci & Elect Engn, Beijing 100191, Peoples R China
基金
中国国家自然科学基金;
关键词
radar; MIMO; space time adaptive processing; waveform diversity; sensitivity; waveform covariance matrix; DESIGN;
D O I
10.1016/S1000-9361(09)60253-3
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
Space time adaptive processing (STAP) is an effective method adopted in airborne radar to suppress ground clutter Multi pie-input multiple-output (MIMO) radar is a new radar concept and has superiority over conventional radars Recent proposals have been applying STAP in MIMO configuration to the improvement of the performance of conventional radars As waveforms transmitted by MIMO radar can be correlated or uncorrelated with each other, this article develops a unified signal model incorporating waveforms for STAP in MIMO radar with waveform diversity Through this framework, STAP performances are expressed as functions of the waveform covariance matrix (WCM) Then, effects of waveforms can be investigated The sensitivity i e, the maximum range detectable is shown to be proportional to the maximum eigenvalue of WCM Both theoretical studies and numerical simulation examples illustrate the waveform effects on the sensitivity of MIMO STAP radar based on which we can make better trade off between waveforms to achieve optimal system performance
引用
收藏
页码:549 / 555
页数:7
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