本文介绍了超宽带线性调频线性调制的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
% t1 = 0:0.001:1; % 2 secs @ 1kHz sample rate
% y1 = chirp(t1,0,1,500); % Start @ DC,
% % cross 150Hz at t=1 sec
% spectrogram(y1,256,250,256,1E3,''yaxis'') %S = spectrogram(x,window,noverlap,nfft,fs)
% t2 = 0:1/2000:1; % 2 secs @ 1kHz sample rate
% y2 = chirp(t2,500,1,1000); % Start @ DC,
% % cross 150Hz at t=1 sec
% spectrogram(y2,256,250,256,2E3,''yaxis''); %S = spectrogram(x,window,noverlap,nfft,fs)
% t3 = 0:1/3000:1; % 2 secs @ 1kHz sample rate
% y3 = chirp(t3,1000,1,1500); % Start @ DC,
% % cross 150Hz at t=1 sec
% spectrogram(y3,256,250,256,3E3,''yaxis'') %S = spectrogram(x,window,noverlap,nfft,fs)推荐答案
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