分布式MIMO雷达优化布站研究

发布时间：2018-12-14 17:52

【摘要】：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.
[Abstract]:To solve the problem of optimal distribution of distributed multi-input multi-output (MIMO) radar transmitting stations and receiving stations, an optimization model for distributed MIMO radar stations is proposed. Firstly, the signal model of distributed MIMO radar is given. Then the influence of antenna position on spatial diversity capability and variance of channel voltage scattering coefficient of distributed MIMO radar is analyzed. On the basis of this, the spatial diversity capability and antenna dispersion degree of distributed MIMO radar are evaluated quantitatively by using spatial diversity and spatial dispersion index. Then, under the condition of certain spatial dispersion, the principle of station placement with maximum spatial diversity is put forward and the corresponding objective function is given. Finally, the effects of signal frequency, detection range, detection azimuth and channel number on distributed MIMO radar stations are simulated and analyzed. The research results have important reference value for the system configuration and practical application of distributed MIMO radar.
【作者单位】：空军预警学院二系;
【基金】：国家自然科学基金资助项目(61179015;61401504) 中国博士后科学基金资助项目(2014M562562)
【分类号】：TN958

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