?? synth_filter.m
字號:
% AccelDSP 8.1.1 build 690 Production, compiled Apr 26 2006
%
% THIS IS UNPUBLISHED, LICENSED SOFTWARE THAT IS THE CONFIDENTIAL
% AND PROPRIETARY PROPERTY OF XILINX OR ITS LICENSORS
%
% Copyright(c) Xilinx, Inc., 2000-2006, All Rights Reserved.
% Reproduction or reuse, in any form, without the explicit written
% consent of Xilinx, Inc., is strictly prohibited.
function FilterOut = synth_filter(FilterIn)
coeff = load('b.txt');
persistent tap_delay
if isempty(tap_delay)
tap_delay = zeros(1,length(coeff));
end
% Perform sum of products
FilterOut = tap_delay * coeff(end:-1:1)';
% Shift tap delay line
tap_delay = [tap_delay(2:length(coeff)) FilterIn];
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