代码搜索：Raspberry Pi
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www.eeworm.com/read/288383/8636880
c fir.c
/////////////////////////////////////////////////
// Example For ICETEK-VC5416-EDU //
// CTR Version : V4 //
// Filename: Fir.c
www.eeworm.com/read/288383/8636907
c iir.c
/////////////////////////////////////////////////
// Example For ICETEK-VC5416-EDU //
// CTR Version : V4 //
// Filename: Iir.c
www.eeworm.com/read/432020/8639268
c gaussian.c
#include
#define pi 3.1415
double
gaussian(double x)
{
double resu;
resu=-0.5*x*x;
resu=exp(resu);
resu=resu/sq
www.eeworm.com/read/288205/8647589
m c5_4_1.m
clear all;
clf;
N=1224;
f1=200;
f2=700;
f3=1100;
dt=1/1024;
sample=1/dt;
randn('state',sum(100*clock));
dis=2*rand(1,
www.eeworm.com/read/387887/8649390
m p10_8.m
% Program P10_8
% Design of Uniform DFT Filter Banks
clf;
% Design the prototype FIR lowpass filter
b = remez(20, [0 0.2 0.25 1], [1 1 0 0], [10 1]);
w = 0:2*pi/255:2*pi; n = 0:20;
for k = 1:4;
www.eeworm.com/read/387887/8649428
m p3_5.m
% Program P3_5
% Modulation Property of DTFT
clf;
w = -pi:2*pi/255:pi;
x1 = [1 3 5 7 9 11 13 15 17];
x2 = [1 -1 1 -1 1 -1 1 -1 1];
y = x1.*x2;
h1 = freqz(x1, 1, w);
h2 = freqz(x2, 1, w);
h3 =
www.eeworm.com/read/387887/8649443
m p3_4.m
% Program P3_4
% Convolution Property of DTFT
clf;
w = -pi:2*pi/255:pi;
x1 = [1 3 5 7 9 11 13 15 17];
x2 = [1 -2 3 -2 1];
y = conv(x1,x2);
h1 = freqz(x1, 1, w);
h2 = freqz(x2, 1, w);
hp = h1.
www.eeworm.com/read/387887/8649563
m p5_4.m
% Program P5_4
% Design of Analog Lowpass Filter
clf;
Fp = 3500;Fs = 4500;
Wp = 2*pi*Fp; Ws = 2*pi*Fs;
[N, Wn] = buttord(Wp, Ws, 0.5, 30,'s');
[b,a] = butter(N, Wn, 's');
wa = 0:(3*Ws)/511:3*W
www.eeworm.com/read/387887/8649569
m p5_3.m
% Program P5_3
% Illustration of the Aliasing Effect
% in the Frequency-Domain
clf;
t = 0:0.005:10;
xa = 2*t.*exp(-t);
subplot(2,2,1)
plot(t,xa);grid
xlabel('Time, msec');ylabel('Amplitude');
www.eeworm.com/read/387814/8652457
c fir.c
#include"math.h"
#define FIRNUMBER 25
#define SIGNAL1F 1000
#define SIGNAL2F 4500
#define SAMPLEF 10000
#define PI 3.1415926
float InputWave();
float FIR();
float fHn[FIRNUMBER]={ 0.0,0