代码搜索：pha
找到约 824 项符合「pha」的源代码
代码结果 824
www.eeworm.com/read/254282/12150126
m matiaozhi.m
code=[1,1,1,0,1,0,1];
tao=20e-6;
fc=0.5e6;
fs=40000000;ts=1/fs;
B=10000000;
t_tao=0:1/fs:tao-1/fs; % 码内采样点数
k=B/fs*2*pi/max(t_tao);
n=length(code);%码长
N=length(t_tao);
pha=0;
kk=cumsum(t_tao
www.eeworm.com/read/151561/12200962
m ex3041.m
M=45;As=60;n=[0:1:M-1];
beta=0.1102*(As-8.7)
w_kai=(kaiser(M,beta))';
wc1=pi/3;wc2=2*pi/3;
hd=ideal_lp(wc1,M)+ideal_lp(pi,M)-ideal_lp(wc2,M);
h=hd.*w_kai;
[db,mag,pha,grd,w]=freqz_m(h,[1]);
% p
www.eeworm.com/read/350382/10746198
m 4-3.m
%例程4－3 基于巴特沃斯模拟滤波器设计数字高通滤波器
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]=butter(N,wn,'high'); %频率变换法设计巴特沃斯高通滤波器
[db,mag,pha,grd,w]
www.eeworm.com/read/444759/7607546
m 4-3.m
%例程4－3 基于巴特沃斯模拟滤波器设计数字高通滤波器
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]=butter(N,wn,'high'); %频率变换法设计巴特沃斯高通滤波器
[db,mag,pha,grd,w]
www.eeworm.com/read/486200/6538044
m 4-3.m
%例程4－3 基于巴特沃斯模拟滤波器设计数字高通滤波器
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]=butter(N,wn,'high'); %频率变换法设计巴特沃斯高通滤波器
[db,mag,pha,grd,w]
www.eeworm.com/read/485392/6561249
m 4-3.m
%例程4－3 基于巴特沃斯模拟滤波器设计数字高通滤波器
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]=butter(N,wn,'high'); %频率变换法设计巴特沃斯高通滤波器
[db,mag,pha,grd,w]
www.eeworm.com/read/341613/12075922
m 4-3.m
%例程4－3 基于巴特沃斯模拟滤波器设计数字高通滤波器
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]=butter(N,wn,'high'); %频率变换法设计巴特沃斯高通滤波器
[db,mag,pha,grd,w]
www.eeworm.com/read/415746/11056005
m 4-3.m
%例程4－3 基于巴特沃斯模拟滤波器设计数字高通滤波器
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]=butter(N,wn,'high'); %频率变换法设计巴特沃斯高通滤波器
[db,mag,pha,grd,w]
www.eeworm.com/read/437242/7753059
m 50.m
f1=50;f2=150;
wc1=0.1*pi;wc2=0.2*pi;
N=100;n=[0:1:N-1];
hd=ideal_lp(wc1,N)+ideal_lp(pi-wc2,N).*exp(j*pi*n);
w_han=(hanning(N))';
h=hd.*w_han;
[db,mag,pha,grd,w]=freqz_m(h,1);
subplot(3,1,1);plo
www.eeworm.com/read/435790/7784210
m relax.m
%relax谱估计算法，k为所含谐波数，可以估算，本程序假定该值已知，且由于源程序是按幅值谐波计算，故k应为实际谐波个数2倍，且幅值减半
%th-----迭代阈值
%Nmax---迭代最大次数
function [fre,ampitud,pha]=relax(x,fs,k);
data=zeros(k,length(x));f=zeros(1,k);amp=zeros(1,k);
t=1