关于线性调频波的三个小程序，包括线性调频波的生成，FFT变换，线性调频信号通过匹配滤波器-Linear frequency modulation wave on the three small procedures, including the generation of LFM wave, FFT transform, linear frequency modulated signal through the matched filter

匹配滤波，对线性调频信号进行匹配滤波处理，可以得到目标的特征信息(The matching filter is used to match the linear frequency modulation signal to obtain the characteristic information of the target.)