Howtosignalprocessing
What is Morse wavelet?
Generalized Morse wavelets are a family of exactly analytic wavelets. Analytic wavelets are complex-valued wavelets whose Fourier transforms are supported only on the positive real axis. They are useful for analyzing modulated signals, which are signals with time-varying amplitude and frequency.
How to use DWT in Matlab?
[ cA , cD ] = dwt( x , wname ) returns the single-level discrete wavelet transform (DWT) of the vector x using the wavelet specified by wname . The wavelet must be recognized by wavemngr . dwt returns the approximation coefficients vector cA and detail coefficients vector cD of the DWT.
How does Matlab calculate wavelet transform?
wt = cwt( x , wname ) uses the analytic wavelet specified by wname to compute the CWT. [ wt , f ] = cwt(___, fs ) specifies the sampling frequency, fs , in hertz, and returns the scale-to-frequency conversions f in hertz. If you do not specify a sampling frequency, cwt returns f in cycles per sample.
