MIMO radar with widely separated antennas
MIMO radar with widely separated antennas
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DOI：
10.1109/msp.2008.4408448
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发表时间：
2008-01-01
影响因子：
14.9
通讯作者：
Cimini, Leonard J., Jr.
中科院分区：
文献类型：
--
作者：
Haimovich, Alexander M.;Blum, Rick S.;Cimini, Leonard J., Jr.
MIMO（多输入多输出）雷达是指采用多个空间分布的发射器和接收器的架构。虽然在一般意义上，MIMO雷达可以被视为一种多基地雷达，但单独的命名法表明了MIMO雷达与多基地雷达文献不同的独特功能，并且与MIMO通信密切相关。本文综述了宽间距天线MIMO雷达的最新研究成果。广泛分离的发射/接收天线捕获目标的雷达截面（RCS）的空间分集。通过实例说明了MIMO雷达的特点。它示出，与非相干处理，目标的RCS空间变化可以被利用，以获得目标检测和估计的各种参数，如到达角和多普勒的分集增益。对于目标定位，它表明，相干处理可以提供一个分辨率远远超过所支持的雷达的波形。
MIMO (multiple-input multiple-output) radar refers to an architecture that employs multiple, spatially distributed transmitters and receivers. While, in a general sense, MIMO radar can be viewed as a type of multistatic radar, the separate nomenclature suggests unique features that set MIMO radar apart from the multistatic radar literature and that have a close relation to MIMO communications. This article reviews some recent work on MIMO radar with widely separated antennas. Widely separated transmit/receive antennas capture the spatial diversity of the target's radar cross section (RCS). Unique features of MIMO radar are explained and illustrated by examples. It is shown that with noncoherent processing, a target's RCS spatial variations can be exploited to obtain a diversity gain for target detection and for estimation of various parameters, such as angle of arrival and Doppler. For target location, it is shown that coherent processing can provide a resolution far exceeding that supported by the radar's waveform.