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/359245/10159599
m exa4_11.m
% exa4-11_butterbandDF.m , for example 4-11
% using butterworth to design bandpass DF
clear all;
Wp=[0.3*pi,0.4*pi];
Ws=[0.2*pi,0.5*pi];
Ap=3;
As=18;
[N,wn]=buttord(Wp/pi,Ws/pi,Ap,As); %计算巴特沃
www.eeworm.com/read/359245/10159601
m exa4_10.m
% exa4-10_butterhighDF.m , for example 4-10
% using butterworth to design highpass DF
clear all;
Wp=0.6*pi;
Ws=0.4*pi;
Ap=1;
As=15;
[N,wn]=buttord(Wp/pi,Ws/pi,Ap,As); %计算巴特沃斯滤波器阶次和截止频率
[b,a]
www.eeworm.com/read/359245/10159610
m exa4_13.m
% exa4-12_butterstopDF.m , for example 4-12
% using butterworth to design bandstop DF
clear all;
Wp=[0.4*pi,0.7*pi];
Ws=[0.2*pi,0.8*pi];
Ap=1;
As=30;
[N,wn]=buttord(Wp/pi,Ws/pi,Ap,As); %计算巴特沃
www.eeworm.com/read/359245/10159612
m exa4_6.m
% exa4-6_lp2bp for example4-6
% chebshev I analog lowpass filter prototype to bandpass filter
clear all;
N=5;
Rp=3;
wl=200*pi;
wh=1000*pi;
% Chebyshev analog lowpass filter prototype
[z,p,k
www.eeworm.com/read/359245/10159618
m exa4_7.m
% exa4-7_lp2bs for example4-7
% chebshev I analog lowpass filter prototype to bandstop filter
clear all;
N=9;
Rp=3;
wl=200*pi;
wh=1000*pi;
% Chebyshev analog lowpass filter prototype
[z,p,k
www.eeworm.com/read/359245/10159623
m exa4_5.m
% exa4-5_lp2hp for example4-5
% chebshev I analog lowpass filter prototype to highpass filter
clear all;
N=9;
Rp=10;
wl=400*pi;
[z,p,k]=cheb1ap(N,Rp);
[b,a]=zp2tf(z,p,k);
% design analog hi
www.eeworm.com/read/359240/10159694
m 例7-2.m
>> t=(-5*pi:pi/40:5*pi)+eps;
>> y=sin(t)./t;
>> hline=plot(t,y); %绘制Sa曲线
>> cm=uicontextmenu; %创建现场菜单
>> %制作具体菜单项，定义相应的回调
>> uimenu(cm,'label','
www.eeworm.com/read/359240/10159755
m 例9-24 .m
t=0:-001:1
％产生原始信号
x=t+sin(10*2*pi*t).*cos(2*pi*t)
％对原始信号进行DCT变换
y=dct(x)
％取数据长度的1/10进行重建实验
n=fix(length(y)/10)
％其余数据全部填充为0
y(n+1:length(y))=0
％使用剩下的1/10数据进行反DCT变换，重建原始信号
z=idct(y)
www.eeworm.com/read/359240/10159770
m 例9-25 .m
t=0:-001:2*pi
x=sin(3*t)
y=hilbert(x)
％同时显示原始数据图像和变换后数据图像
plot(t,real(y),':',t,imag(y))
www.eeworm.com/read/359240/10159848
m 例5-1.m
>> a1=axes; %创建第一个区域位于窗口上方
>> set(a1,'position',[0.05 0.55 0.9 0.4]); %定位于窗口上方
>> a2=axes; %创建第二个区域
>> set(a2,'position',[0.05 0.