Answered
Median Frequency
I suspect your problem is that your signal has a nonzero mean possibly as a result of some nonstationarity or simply due to a DC...

15 years ago | 0

Answered
Plotting the bandpass characteristics of a wavlet and its dilations
Hi, Since the 'db2' wavelet is associated with a multiresolution analysis, you can use the scaling (lowpass) and wavelet (highpa...

15 years ago | 0

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Answered
Why does FFT show harmonics at different amplitude?
Did you change the t vector? Fs = 976; N = 976; fb = 50; t = 0:1/Fs:1-(1/Fs); x = cos(2*pi*50*t)+cos(4*pi*50*t)...

15 years ago | 0

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Answered
Why does FFT show harmonics at different amplitude?
Hi, Your problem is that your frequencies are not falling directly on DFT bins. The DFT bins are multiples of Fs/N. Also, you...

15 years ago | 0

Answered
value of scale in CWT
The relationship is far from straightforward. You can use scal2frq in the Wavelet Toolbox to get an approximate scale to frequen...

15 years ago | 0

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Answered
Estimation of global and local holder exponent (values) directly from wavelet transform modulus maxima(WTMM)
I'd have to think a bit about how to actually estimate the Holder (Lipschitz) exponents from the CWT, but you can use localmax i...

15 years ago | 0

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Answered
wavelet
Hi, If you have the Wavelet Toolbox software, use wavedec2 and specify which Daubechies' wavelet you wish to use. There are a nu...

15 years ago | 0

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Answered
Financial toolbox transprob function
Please ensure that you have the Financial Toolbox software installed. To see the toolboxes you have installed, enter >>ver ...

15 years ago | 0