www.gusucode.com > wavelet 源码程序 matlab案例代码 > wavelet/WaveletCoherenceUsingDefaultSettingsExample.m
%% Wavelet Coherence of Two Sine Waves % Use default |wcoherence| settings to obtain the wavelet coherence between % a sine wave with random noise and a frequency-modulated signal with % decreasing frequency over time. t = linspace(0,1,1024); x = -sin(8*pi*t) + 0.4*randn(1,1024); x = x/max(abs(x)); y = wnoise('doppler',10); wcoh = wcoherence(x,y); %% % The default coherence computation uses the Morlet wavelet, 12 voices per % octave and smooths 12 scales. The default number of octaves is equal to % |floor(log2(numel(x)))-1|, which in this case is 9.