该程序采用Hamming窗函数进行设计非线性调频信号，原理是利用压信号匹配滤波输出的频谱具有Hamming窗的形状，然后用利用逗留相位定理来近似求解信号的相位信息。-The program uses Hamming window function design nonlinear FM signal, the principle is the use of the shape of the output voltage signal spectrum matched filter having Hamming window, then stay with the use of phase approximation theorem for solving the phase information signal.