代码搜索：Raspberry Pi
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www.eeworm.com/read/447444/7551017
m exp2_4_.m
close all
clc
clear
%定义时间范围
t=[0:pi/20:9*pi];
hold on %允许在同一坐标系下绘制不同的图形
plot(t,sin(t),'r:*')
plot(t,cos(t))
plot(t,-cos(t),'k')
grid on %在所画出的图形坐标中添加栅格，注意用在plot之后
hold off %覆盖旧图
www.eeworm.com/read/447444/7551025
m exp2_4.m
close all
clc
clear
%定义时间范围
t=[0:pi/20:9*pi];
figure(1) %选择图像
plot(t,sin(t),'r:*')
grid on %在所画出的图形坐标中添加栅格，注意用在plot之后
grid off %删除栅格
figure(2)
plot(t,cos(t))
grid on
grid off
www.eeworm.com/read/446496/7577503
m fenji.m
clear;
f=100; %待测信号频率
fs=12800; %采样频率
N=128; %采样点数
m=log2(N); %总级数
t=linspace(0,N/fs,N);
count=0:1023;
y=cos(2*pi*count*1000/1024);
yy=fft(y,1024
www.eeworm.com/read/445426/7595556
m gau1.m
%函数gau1.m:ML量化器设计中分子的计算式%
function y=gau1(x)
y=x./sqrt(2*pi).*exp(-x.^2/2);
www.eeworm.com/read/445426/7595562
m gau.m
%函数gau.m:ML量化器设计中分母的计算式%
function y=gau(x)
y=1/sqrt(2*pi)*exp(-x.^2/2);
www.eeworm.com/read/444759/7607543
m 4-6.m
%例程4－6 带通椭圆滤波器的幅频函数
wp1=10;
wp2=20;
Fs=100;
rp=0.5;
rs=50;
wp1=2*pi*wp1;
wp2=2*pi*wp2;
Bw=wp2-wp1;
Wo=sqrt(wp2*wp1);
[z,p,k]=ellipap(7,rp,rs);
[A,B,C,D]=zp2ss(z,p,k);
[At,Bt,Ct,Dt]=lp2b
www.eeworm.com/read/444712/7608057
m dtransform.m
%dtranform.m 数字滤波器设计，从低通到其他类型滤波器的频率对应关系
%具体的坐标频率转换公式参见《数字信号处理》第二版 丁玉美，高西全, 西安电子科技大学出版社
function [out0,out1]=dtransform(w,string)
%下面的参数为设计滤波器时给定的参数
wu=0.7*<mark>pi</mark>;
wl=0.5*<mark>pi</mark>;
wc=0.4*<mark>pi</mark>; %最终设计的低 ...
www.eeworm.com/read/444331/7613915
m chap3_11f.m
function [y]=func(x1,x2,x3)
for l1=1:1:3
gs1=-[(x1+pi/6-(l1-1)*pi/6)/(pi/12)]^2;
u1(l1)=exp(gs1);
end
for l2=1:1:3
gs2=-[(x2+pi/6-(l2-1)*pi/6)/(pi/12)]^2;
u2(l2)=exp(gs2);
end
www.eeworm.com/read/444297/7614365
m deg2rad.m
function uscita = deg2rad(ingresso)
uscita = 2*pi*ingresso/360;
www.eeworm.com/read/443342/7634312
m ex0114.m
function x = ex0114(t,D)
global D
%D=1;
t(find(t == 0)) = eps;%zuixiaozhengshu
x = sin(pi*t/D)./(pi*t/D);