代码搜索：功率谱
找到约 2,083 项符合「功率谱」的源代码
代码结果 2,083
www.eeworm.com/read/238826/13322289
m add_noise.m
function rec_freq_Signal=add_noise(rec_freq_Signal_ideal,snr_indB,Eav);
snr = 10^(snr_indB/10);
N0 = Eav/snr;
sigma0 = sqrt (N0/2); %加入双边带功率谱
noise = sigma0 * complex( randn(size(rec_fr
www.eeworm.com/read/321289/13409557
m add_noise.m
function rec_freq_Signal=add_noise(rec_freq_Signal_ideal,snr_indB,Eav);
snr = 10^(snr_indB/10);
N0 = Eav/snr;
sigma0 = sqrt (N0/2); %加入双边带功率谱
noise = sigma0 * complex( randn(size(rec_fr
www.eeworm.com/read/309994/13660933
m 数字基带传输系统.m
%Auther:杨登锋
%Date:4/8/2008
%Describtion: 仿真数字基带传输系统，包括输入、输出信号波形及其功率谱，
% 眼图（升余弦滚降系数a=0.5），Pe~Eb\No曲线，取样时间无偏差
global dt df t f N T %定义全局变量
close all
www.eeworm.com/read/486202/6538119
m 5-8.m
%例程5－8 利用Bartlett法估计功率谱
% e.g.5-8.m for example5-8;
% to test function psd;
clear all;
% Generate the signal with noise and display
N=1024;
n=0:1/(N-1):1;
f1=0.1;
f2=0.9;
wn=randn(1,N);
www.eeworm.com/read/486202/6538120
m 5-9.m
%例程5－9 利用Welch法估计功率谱
% e.g.5-9.m for example5-9;
% to test function pwelch;
clear all;
% Generate the signal with noise and display
N=1024;
n=0:1/(N-1):1;
f1=0.1;
f2=0.9;
wn=randn(1,N);
www.eeworm.com/read/485392/6561021
m 5-8.m
%例程5－8 利用Bartlett法估计功率谱
% e.g.5-8.m for example5-8;
% to test function psd;
clear all;
% Generate the signal with noise and display
N=1024;
n=0:1/(N-1):1;
f1=0.1;
f2=0.9;
wn=randn(1,N);
www.eeworm.com/read/485392/6561022
m 5-9.m
%例程5－9 利用Welch法估计功率谱
% e.g.5-9.m for example5-9;
% to test function pwelch;
clear all;
% Generate the signal with noise and display
N=1024;
n=0:1/(N-1):1;
f1=0.1;
f2=0.9;
wn=randn(1,N);
www.eeworm.com/read/482677/6620898
m oqpsk.m
%QPSK & OQPSK
clear all;
close all;
M = 4;
Ts= 1;
fc= 10;
N_sample = 16;
N_num = 100;
dt = 1/fc/N_sample;
t = 0:dt:N_num*Ts-dt;
T = dt*length(t);
py1f = zeros(1,length(t)); %功率谱密度1
www.eeworm.com/read/156451/11803060
m zuoye2.m
clear all;
close all;
Fs=2000;
n=0:1/2000:1;
x=sin(2*pi*100*n)+4*sin(2*pi*500*n)+randn(size(n));
N=4096;
% 用 Welch 平均估计试验数据的功率谱；
xpsd1=pwelch(x,hamming(256),32,N,'twosided');
% f=(0:lengt
www.eeworm.com/read/341613/12075304
m 5-8.m
%例程5－8 利用Bartlett法估计功率谱
% e.g.5-8.m for example5-8;
% to test function psd;
clear all;
% Generate the signal with noise and display
N=1024;
n=0:1/(N-1):1;
f1=0.1;
f2=0.9;
wn=randn(1,N);