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xr=real(hx);xi=imag(hx); sz=sqrt(xr.^2 + xi.^2); sx=atan(xi./xr); dt = diff(t); dx = diff(sx); sp = dx./dt; figure plot(t(1:N-1),sp) title(['InstantFreq imf ' num2str(i)]) end ·¢×ÔСľ³æAndroid¿Í»§¶Ë |
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