wigner - 'time-frequency' wigner spectrum

Calling Sequence

[tab]=wigner(x,h,deltat,zp)

Parameters

• tab : wigner spectrum (lines correspond to the time variable)
• x : analyzed signal
• h : data window
• deltat : analysis time increment (in samples)
• zp : length of FFT's. %pi/zp gives the frequency increment.

Description

function which computes the 'time-frequency' wigner spectrum of a signal.