fir_m.htm

来自「FIR滤波器的MATLAB程序,可用于算法仿真,非常有用.」· HTM 代码 · 共 22 行

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<BODY><PRE>% fir.m - sample processing algorithm for FIR filter.
%
% [y, w] = fir(M, h, w, x)
%
% h = order-M filter (row vector)
% w = filter state (row vector)
% x = scalar input
% y = scalar output
% based on fir2.c

function [y, w] = fir(M, h, w, x)

w(1) = x;                          % read input
y = h * w';                        % compute output
w = delay(M, w);                   % update delay
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