代码搜索：Raspberry Pi
找到约 10,000 项符合「Raspberry Pi」的源代码
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www.eeworm.com/read/163777/10145873
m ex039900.m
w = [-100:100]*pi/100; % frequency between -pi and +pi
N = 5;
X1 = sin((w+eps)*N/2)./sin((w+eps)/2);
N = 15;
X2 = sin((w+eps)*N/2)./sin((w+eps)/2);
N = 25;
X3 = sin((w+eps)*N/2)./sin((w+eps)/2);
www.eeworm.com/read/163777/10145877
m ex030300.m
w = [0:1:500]*pi/500; % [0, pi] axis divided into 501 points.
X = exp(j*w) ./ (exp(j*w) - 0.5*ones(1,501));
magX = abs(X); angX = angle(X);
realX = real(X); imagX = imag(X);
subplot(2,2,1); plot(
www.eeworm.com/read/163777/10145885
m ex030400.m
% Chapter 3: Example 3.4:
% DTFT of finite duration seq using mat-vec operation
%
n = -1:3; x = 1:5; % sequence x(n)
k = 0:500; w = (pi/500)*k; % [0, pi] axis divided in
www.eeworm.com/read/163777/10145887
m ex030600.m
subplot(1,1,1)
n = -5:5; x = (-0.9).^n;
k = -200:200; w = (pi/100)*k;
X = x * (exp(-j*pi/100)) .^ (n'*k);
magX = abs(X); angX =angle(X);
subplot(2,1,1); plot(w/pi,magX);grid
axis([-2,2,0,15])
x
www.eeworm.com/read/163777/10145892
m ex031000.m
n = -5:10; x = rand(1,length(n)) + j*rand(1,length(n));
k = -100:100; w = (pi/100)*k; % frequency between -pi and +pi
X = x * (exp(-j*pi/100)).^(n'*k); % DTFT of x
% conjugation property
www.eeworm.com/read/163777/10145909
m program_3_1.m
% Program 3_1
% Discrete-Time Fourier Transform Computation
%
% Read in the desired length of DFT
k = input('Number of frequency points = ');
% Read in the numerator and denominator coefficients
www.eeworm.com/read/163643/10151780
m sanjiao.m
syms t w
ut=sym('Heaviside(t+0.5)-Heaviside(t-0.5)');
Fw=fourier(ut,t,w)
FFw=maple('convert',Fw,'piecewise')
FFFw=FFw*FFw
FFP=abs(FFFw)
subplot(2,1,1)
ezplot(FFFw)
subplot(2,1,2)
ezplot(FFP,[
www.eeworm.com/read/163643/10151828
m sywf.m
r=0.01
t=-5:r:5
f1=Heaviside(t+pi)-Heaviside(t-pi);
f2=Heaviside(t+pi)-2*Heaviside(t)+Heaviside(t-pi);
f=pi/2*(sawtooth(t+pi,0.5)+1).*f1
w1=2*pi*5
N=200
k=-N:N
w=k*w1/N
F=r*f*exp(-j*t'*w)
www.eeworm.com/read/359349/10153890
m ctft_beike.m
% ctft
clear,close all,
dt = 0.01;dw = 0.1;
t = -2:dt:2;
w = -8*pi:dw:8*pi;
x = u(t+1)-u(t-1);
X = x*exp(-j*w'*t)'*dt;
subplot(221)
plot(t,x)
subplot(222)
plot(w,abs(X))
title('Magnitude
www.eeworm.com/read/359349/10153899
m fre_sample_fir2.m
% Name:fre_sample_fir2.m
clear,close all;
tao=2;
N=input('Type in the length N=');
L=ceil(N/3);
k=0:N-1;
M=2*pi/N;
phai=-pi*(k)*(N-1)/N-pi/2;
H=exp(i*phai);
for n=L:N
H(n)=0;
end
kc=fi