Abstract

该文针对RD与CS两种成像算法的差异,首先分析了两种算法在压制性噪声干扰环境下信号与噪声干扰的成像处理增益,推导出两种算法的信号-干扰功率比(信干比)处理增益公式并进行了分析。理论分析结果表明,在采样率仅略大于信号带宽条件下,RD和CS成像算法的信干比处理增益基本一致;在过采样条件下,RD算法由于两维匹配处理从而获得比CS算法大的信干比处理增益,但如果对过采样信号进行滤波处理后,CS算法的信干比处理增益与RD算法一致。最后,采用对计算机仿真数据和真实数据进行处理的方法验证了该文的理论分析和结论。

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