parametric time-frequency representation.
[tfr,t,f]=tfrparam(x,t,N,p,L,ptrace,Rxtype,method,q)
signal
time instant(s) (default : 1:length(X)).
number of frequency bins (default : max(256,length(X)) ).
last autocorrelation lag (default : 2 ).
length of the window around the analyzed time sample. Must be odd. (default : max(51,round(xrow/10)) ).
choice of the correlation matrix algorithm (default : 'fbhermitian') possible values are 'hermitian', 'fbhermitian', 'burg' or 'fbburg'
can be either 'ar', 'periodogram', 'capon', 'capnorm', 'lagunas', or 'genlag'.
parameter for the generalized Lagunas method.
if one input parameter is 'plot', tfrparam runs tfrqview. and TFR will be plotted
x=fmconst(256,0.1)+fmlin(256,0.15,0.30)+fmlin(256,0.2,0.45); scf(1); tfrparam(x,1:256,256,3,21,1,'fbhermitian','ar','plot'); scf(2); tfrparam(x,1:256,256,15,61,1,'fbhermitian','periodogram','plot'); scf(3); tfrparam(x,1:256,256,3,21,1,'fbhermitian','capon','plot'); scf(4); tfrparam(x,1:256,256,3,21,1,'fbhermitian','lagunas','plot'); | ![]() | ![]() |