针对多输入多输出(MIMO)雷达的信号模型,对比了多种不同类型雷达的天线方向图。首先,建立了MIMO雷达的发射-接收信号模型,推导了波束形成方法,获得了模型的天线方向图;然后,分析并对比了MIMO雷达、相控阵雷达和合成孔径雷达的天线方向图;最后,结合仿真试验,总结了不同类型雷达的天线方向图的特点。

Based on the signal model of the multiple-input multiple-output (MIMO) radar, the antenna patterns of different type radar systems are compared. Firstly, the signal model of the MIMO radar is built, and the antenna pattern of the model is obtained by deriving the method of beamforming. Then, the antenna patterns of MIMO radar, phased array radar and synthetic aperture radar are analyzed and compared. Finally, simulation result is given and the characteristics of different type radar systems'antenna patterns are summarized.

TN958