代码搜索：如何学习 Fir？
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txt 新手学习c#的建议,如何快速掌握c#.txt
要学习一门编程语言并不难，编程主要是掌握思想，然后就是练习敲代码了。你的代码量每突破50000行的时候你的水平都有一个阶段性的提升，翔子在此给学习c#的朋友一些建议，供新手参考！首先熟悉.net框架,理解面向对象编程的思想,挺重要的!编程的学习是要慢慢而来的,慢慢的积累!
编程是看重的是思想,解决问题的算法!方法!你如果没有这种能力的话,可是不行的! 打个 ...
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doc 十年经验教你如何学习嵌入式系统 .doc
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vhd fir.vhd
LIBRARY ieee;
USE IEEE.std_logic_1164.all;
USE IEEE.numeric_std.ALL;
entity FIR is
port(
clock : in std_logic;
reset : in std_logic;
data_in : in signed(11 downto 0);
data_out : out
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out fir.out
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pjt fir.pjt
; Code Composer Project File, Version 2.0 (do not modify or remove this line)
[Project Settings]
ProjectDir="C:\ti\myprojects\Fir\"
ProjectType=Executable
CPUFamily=TMS320C67XX
Tool="Compiler"
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c fir.c
//Fir.c FIR filter. Include coefficient file with length N
#include "bs2700.cof" //coefficient file BS @ 2700Hz
int yn = 0; //initialize filter's output
short dly[N];
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fig fir.fig
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asv fir.asv
wc=0.25*pi;N=33;
alpha=(N-1)/2;
n=0:1:N-1;
m=n-alpha+eps;
hd=sin(wc*m)./(pi*m);
wd2=hanning(N)';b2=hd.*wd2;
[H2,w]=freqz(b2,1);
subplot(2,2,1)
plot(w,abs(H2),'-.g')
legend('升余弦窗低通滤波器')
subpl
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m fir.m
wc=0.25*pi;N=33;
alpha=(N-1)/2;
n=0:1:N-1;
m=n-alpha+eps;
hd=sin(wc*m)./(pi*m);
wd2=hanning(N)';b2=hd.*wd2;
[H2,w]=freqz(b2,1);
subplot(2,2,1)
plot(w,abs(H2),'-.g')
legend('升余弦窗低通滤波器')
subpl
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m fir.m
%利用Hamming窗设计FIR数字低通滤波器
ap=3;as=30;
fp=30; fs=50;
Fs=200;
Wp=0.3*pi;Ws=0.5*pi;
%确定滤波器阶数
f=(fs-fp)/Fs;
N=3.3/f;
M=N-1;
fprintf('滤波器阶数=% .0f\n',M);
%理想低通截频
Wc=(Wp+Ws)/2;
%窗函数的值
k=0:M;
Wk=0