zplot.m

来自「里面囊括了基于matlab滤波器设计的各种.m文件」· M 代码 · 共 22 行

 
%        plot the input data with respect to data index

        function zplot(zin,ndz)


        subplot(4,1,1);plot(zin(1:ndz),'o');
        title(' The input signal');
        hold on
        zpinput=spectrum(zin,128);
        subplot(4,1,2);specplot(zpinput);%title(' The pds of input signal');
        xlabel('                                                       F')
        hold on
        zfft=fft(zin,256);
        zafft=abs(zfft);
        subplot(4,1,3);plot(zafft);
        title(' The am-FFT  of  input signal');
        hold on
        zpfft=angle(zfft);
        subplot(4,1,4);plot(zpfft);
        title(' The phase-FFT of input signal');
        hold off