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提出了一种用于线性调频连续波(LFM-CW)雷达的信号处理新方法。该方法用带通滤波器在频域內实现差拍信号的距离分段,然后用第一距离段所需采样率对每个距离段进行采样和FFT处理。在距离分辨单元数很大时,这种方法可以大大降低LFN-CW雷达对信号处理器的要求。
A new signal processing method for linear frequency modulated continuous wave (LFM-CW) radar is proposed. In this method, the band-pass filter is used to segment the distance of the beat signal in the frequency domain, and then the sampling and FFT processing are performed on each distance segment with the required sampling rate of the first distance segment. This method can greatly reduce the signal processor requirements of the LFN-CW radar when the number of distance resolution units is large.