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航空学报  2013 

基于RELAX的空中多机动目标检测与参数估计

DOI: 10.7527/S1000-6893.2013.0148, PP. 873-881

Keywords: 机载雷达,机动目标检测,空时自适应处理,RELAX,重构时间采样

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Abstract:

针对机载雷达空中多机动目标的检测问题,提出了一种基于RELAX算法的空中多机动目标检测与参数估计方法。该方法将重构时间采样技术与RELAX算法相结合,有效地抑制了检测过程中强信号分量对弱信号分量的影响,在待测单元内存在多个目标时,能够获得很好的参数估计结果,并且在脉冲点数有限的情况下,该方法得到的参数估计精度依然很高。同时,本文还推导了空中多机动目标参数估值的克拉美罗界(CRB),为估计结果提供了理论下限。仿真结果证明了该方法的有效性。

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