The clear
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Fs=44100;
Ts=1/fs. % sampling period
L=44100; Sampling points %
X=20.1 xlsread. XLS;
The STA=0; % sampling starting position
T=(0: L - 1) * Ts;
% time seriesFigure
The plot (t, x);
The title (' 20 hz);
X1=x ';
Y=MCKD (x1, 100 , 100 8, 1);
Figure
The plot (y);
44100 known sampling frequency, sampling points to 44100, the original data of time-frequency diagram, as shown in the figure to MCKD data processing, the step length, cycle, how to determine the displacement of count?
