脉冲串信号分辨力问题分析

从模糊函数、距离分辨力、速度分辨力三个角度对均匀脉冲串与重复周期参差脉冲串信号的分辨力问题进行分析，结合仿真图得到两类信号的分辨力特性及差异。结论为，重复周期参差脉冲串信号相对于均匀脉冲串信号较好地改善了测距测速二维模糊，但增大了速度模糊旁瓣的宽度和平均幅度。最后根据信号模糊度图给出了两类信号在实际应用中提高分辨力的相关措施。

Resolution Problem Analysis of Pulse Train Signal

Based on the ambiguity function, and the range resolution and Doppler resolution, resolution of coherent pulse train and repetition internal stagger pulse train are discussed. Combining with the emulation figures, the resolution characteristics and differences of two kinds of signals are obtained. The conclusion is that the range and Doppler ambiguity of repetition internal stagger train pulse is much lower than coherent train pulse while the width and average amplitude of Doppler uncertainty side lobe are increased. Finally, the relevant measures of improving resolution of the two signals in practical application are introduced according to the ambiguity contour plot.