Mexican hat wavelet in time domain.
H=mexhat(NU)
any real between 0 and 0.5 (default : 0.05).
time vector containing the mexhat samples. length(H)=2*ceil(1.5/NU)+1.
mexhat returns the mexican hat wavelet with central frequency NU (NU is a normalized frequency in Hz).
plot(mexhat); | ![]() | ![]() |