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空-时二维步进频MIMO雷达宽带信号处理研究

Keywords: MIMO雷达,高分辨力,宽带,步进频率

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Abstract:

为实现多输入多输出(MIMO)雷达距离高分辨,提出了空时二维步进频加线性调频的发射信号模型.MIMO雷达采用空时二维步进频的发射信号模型,可以将宽带信号处理分为接收波束形成、脉冲压缩、发射波束形成、慢时间维信号合成4个部分.发射信号分集给系统带来更多自由度的同时,也使信号处理变得更为复杂.仿真结果表明,当发射阵列规模较大时,MIMO雷达能在一个脉冲重复周期(PRT)内实现宽带信号合成,避免了常规宽带雷达的运动补偿问题.

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