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本文讨论了步进频率编码信号的模糊函数，提出了一种正负步进频率编码信号及其处理方法。该信号克服了常规步进频率编码信号存在距离一速度耦合的缺点，具有较高的目标距离－速度联合分辨力和较强的杂波抑制能力，并且采用相应的信号处理方法可同时完成对目标速度的精确测量。
This paper discusses the ambiguity function of the step frequency coded signal and proposes a positive and negative step frequency coded signal and its processing method. The proposed method overcomes the shortcomings of conventional stepping frequency coded signals such as distance-velocity coupling, high target-velocity joint resolution and strong clutter suppression ability. The corresponding signal processing method can be used to accomplish the target Accurate measurement of speed.