FRIEDMAN Instantaneous frequency density.
TIFD = friedman(TFR,HAT TIFD = friedman(TFR,HAT,T TIFD = friedman(TFR,HAT,T,METHOD) TIFD = friedman(TFR,HAT,T,METHOD,TRACE) TIFD = friedman(...,'plot')
time-frequency representation, (N,M) matrix.
complex matrix of the reassignment vectors.
the time instant(s) (default : (1:M)).
chosen representation (default : 'tfrrsp').
when called with the additional string 'plot', friedman runs tfrqview. and TIFD will be plotted
if nonzero, the progression of the algorithm is shown (default : 0).
time instantaneous-frequency density.
computes the time-instantaneous frequency density (defined by Friedman [1]) of a reassigned time-frequency representation.
WARNING : TIFD is not an energy distribution, but an estimated ------- probability distribution !