随着现代雷达信号样式的急剧变化，传统的基于常规五参数的信号分选方式难以满足新时期雷达对抗要求，基于雷达脉内调制参数分析的信号分选成为信号分选识别的新兴方向。从信号时频分析角度，提出了一种脉内相位编码信号快速码率估计方法。通过蒙特卡罗仿真实验以及实际试验测试证明，即使在低输入信噪比情况下该方法也可对脉内相位编码码速率进行有效估计。%With the dramatic changes in the style of modern radar signal, the normal method based on the conventional five parameters could not meet the requirement of radar countermeas-ure in the new period. The sorting method based on the modulation parameters of radar pulse is a newly born research focus. Based on time-frequency analysis, a method of fast symbol rate es-timation for in-pulse PSK signals is presented. The Monte Carlo simulation and actual test prove the algorithm is fit for symbol rate estimation at low SNR.
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