Matlab画图问题,自相关函数,功率谱密度,求具体代码。答:subplot(211),plot(lag1/Fs,cor1),title('(0,1)均匀分布自相关函数');Xk1 = fft(cor1,nfft);Px1 = abs(Xk1);subplot(212),plot(k,10*log10(Px1(idx+1))),title('(0,1)均匀分布功率谱密度');x2 = normrnd(2,5,1,1001);[cor2 lag2] = xcorr(x2,'unbiased');figure(2);...