matla窗口制作，滤波，频谱分析等功能的很多程序-window matla production, filtering, spectral analysis of the many procedures and other functions

main.m主函数 freqz_m2.m 频域滤波函数 ideal_lp1.m理想滤波函数 matlab1.mat matlab2.mat 调用函数 可以实现微弱目标的分离提取技术-Can achieve the separation of weak targets extraction technology