loweq.m

自己做的一道关于调频的MATLAB代码,希望大家引用。

function xl=loweq(x,ts,f0) 
%		xl=loweq(x,ts,f0) 
%LOWEQ		Returns the lowpass equivalent of the signal x. 
%		f0 is the center frequency.  
%		ts is the sampling interval. 
%	 
t=[0:ts:ts*(length(x)-1)];	 
z=hilbert(x); 
xl=z.*exp(-j*2*pi*f0*t);