中文说明：该程序可以进行匹配滤波器的仿真。参数如下：
English Description：
This program can carry out the match filter simulation. the parameters are as follow: A=1;amplitude f0=3000;frequency fs=10*f0;sampling frequency phase=pi/6;phase T=0.01; time of signal t=0:1/fs:T-1/fs; fl=2000; low frequency fh=4000; high frequency k=(fh-fl)/T; parameter of LFM signal length(t)