hr_type3.m

来自「the file contain many matlab signal sour」· M 代码 · 共 16 行

function [Hr,w,c,L]=hr_type3(h);
% Computes Amplitude response of  Type-3 LP FIR filter
% ---------------------
% [Hr,w,c,L]=hr_type3(h)
% Hr=Amplitude Response
% w=500 frequecies between [0 pi] over which Hr is computed
% b=Type-3 LP filter coefficients
% L=Order of Hr
% h=Type-3 LP filter impulse response
% 
M=length(h);
L=(M-1)/2;
c=[2*h(L+1:-1:1)];
n=[0:L];
w=[0:500]'*pi/500;
Hr=sin(w*n)*c';