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找到约 10,000 项符合「Raspberry Pi」的源代码

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热门代码： main.c GPIO I2C SPI UART timer interrupt ADC PWM LED
www.eeworm.com/read/391780/8377752

m ms25_6.m

%频率采样法设计带通(2点过渡带) N=41;T1=0.5941;T2=0.109; %输入设计数据 n=0:N-1;ws1=0.4*pi;ws2=0.6*pi; %输入截止频率 wp1=0.25*pi;wp2=0.75*pi; N1=fix((ws2-ws1)/(2*pi/N));N1=N1+mod(
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www.eeworm.com/read/391780/8377757

m ms19_1.m

%将巴特沃斯模拟滤波器原型变换成实际模拟低通滤波器 fp=2000;Omgp=2*pi*fp; %输入实际滤波器的通带截止频率 fs=5000;Omgs=2*pi*fs; %输入实际滤波器的阻带截止频率 Rp=1;As=20; %输入滤波器的通阻带衰减指标 %计算滤波器的阶数和3dB截止频率 [n,Omgc]=buttord(Omgp,Omgs,Rp,As
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www.eeworm.com/read/391780/8377767

m ms23_1.m

h=[3,-1,-5,4,6,4,-5,-1,3]; M=length(h);n=0:M-1; [A,w,type,tao]=amplres(h);type subplot(2,1,1),stem(n,h,'k'); ylabel('h(n)');xlabel('n'); subplot(2,1,2),plot(w/pi,A,'k'); ylabel('A');xlabel('\pi'
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www.eeworm.com/read/391780/8377772

m ms23_3.m

h=[3,-1,-5,4,0,-4,5,1,-3]; M=length(h);n=0:M-1; [A,w,type,tao]=amplres(h);type subplot(2,1,1),stem(n,h,'k'); ylabel('h(n)');xlabel('n'); subplot(2,1,2),plot(w/pi,A,'k'); ylabel('A');xlabel('\pi'
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www.eeworm.com/read/391780/8377789

m ms12r41.m

xn=[7,6,5,4,3,2]; N=length(xn); n=0:N-1; w=linspace(-2*pi,2*pi,500);%将[-2π,2π]区间分割为500份 X=xn*exp(-j*n'*w); %离散时间傅里叶变换 subplot(3,1,1),stem(n,xn); ylabel('x(n)'); subplot(3,1,2),plot(w
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www.eeworm.com/read/391780/8377807

m ms24_8.m

%FIR带通滤波器 fp1=150;fp2=350; %输入设计指标 fs1=100;fs2=400;Fs=1000; ws1=fs1/(Fs/2)*pi;ws2=fs2/(Fs/2)*pi;%计算归一化角频率 wp1=fp1/(Fs/2)*pi;wp2=fp2/(Fs/2)*pi; deltaw=wp1-ws1; %计算过渡带的宽度 N0=cei
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www.eeworm.com/read/391780/8377811

m ms19_2.m

%将巴特沃斯模拟滤波器原型变换成实际模拟高通滤波器 fp=5000;Omgp=2*pi*fp; %输入实际滤波器的通带截止频率 fs=2000;Omgs=2*pi*fs; %输入实际滤波器的阻带截止频率 Rp=1;As=20; %输入滤波器的通阻带衰减指标 %计算滤波器的阶数和3dB截止频率 [n,Omgc]=buttord(Omgp,Omgs,Rp,As
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www.eeworm.com/read/391780/8377814

m ms13_41.m

x1=[1,2,3,4,5,6,7,0,0,0]; %建立x(n),N=10序列 N=length(x1); n=0:N-1;k=0:N-1; y1=x1(mod(-n,N)+1); %建立x(-n),N=7序列 Xk=x1*exp(-j*2*pi/N).^(n'*k) %求x(n)的DFT Yk=y1*exp(-j*2*pi/N).^(n'*k) %求y(n)的DFT sub
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www.eeworm.com/read/391780/8377822

m ms20_1.m

%脉冲响应不变法设计巴特沃斯低通滤波器 %数字滤波器指标 wp=0.25*pi; %滤波器的通带截止频率 ws=0.4*pi; %滤波器的阻带截止频率 Rp=1;As=15; %输入滤波器的通阻带衰减指标 ripple=10^(-Rp/20); %计算通带衰减对应的幅度值 Attn=10^(-As/20)
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www.eeworm.com/read/391780/8377828

m ms15_2.m

f0=1;T0=1/f0;dt=0.1; %输入基波的频率.周期 fm=5*f0;Tm=1/fm; %最高频率为基波的5倍频 t=-2:dt:2; N=length(t); %求时间轴上采样点数 f=sin(2*pi*f0*t)+1/3*sin(6*pi*f0*t); %建立原连续信号 wm=2*pi*fm; k=0:N-
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