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针对分布式多输入多输出(MIMO)雷达各发射站和接收站的优化布站问题,提出了一种分布式MIMO雷达布站的优化模型.首先给出了分布式MIMO雷达的信号模型;然后分析了收发天线位置对分布式MIMO雷达的空间分集能力和信道电压散射系数方差的影响,在此基础上提出了用空间分集度和空间分散度指标对分布式MIMO雷达的空间分集能力和天线分散程度进行量化评估;接着提出了在空间分散度一定的条件下,使空间分集度最大的布站原则并给出了相应的目标函数;最后仿真分析了信号频率、探测距离、探测方位、信道数目等因素对分布式MIMO雷达布站的影响.研究结果对分布式MIMO雷达的系统配置和实际应用具有重要的参考价值.
In order to solve the problem of distributed stations in transmitting and receiving stations of distributed multiple input multiple output (MIMO) radar, a distributed MIMO radar station optimization model is proposed.At first, the signal model of distributed MIMO radar is given, and then The influence of the position of the transmitting and receiving antennas on the spatial diversity ability and the variance of the channel voltage scattering coefficient of the distributed MIMO radar is analyzed. Based on this, the spatial diversity and spatial dispersion index are proposed for spatial diversity and distributed antennas of distributed MIMO radar Then the paper puts forward the principle of distributed station which maximizes the degree of spatial diversity and gives the corresponding objective function under the condition of certain degree of spatial dispersion. Finally, the signal frequency, detection range, detection azimuth, number of channels And other factors on distributed MIMO radar station.The research results have important reference value for the system configuration and practical application of distributed MIMO radar.