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/202229/15389019
m welch.m
%采用Welch法计算正弦信号功率谱,Hamming Window;
figure;
fc = 50e9;
Stx = TRANSMITTER_TR_TH_2PPM;
N = length(Stx);
Li = 100;%Bartlett法的分段数
M = N/Li;%每段数据长度
P = zeros(1,M);
%%%%%%%%%%%窗函数%%%%%%%%%%%%%%
www.eeworm.com/read/302246/13838457
m gonglvpu.m
clear all
close all
f=[0:0.02:150];
fc=10;
A=1;
Ts=1;
%-------------------PSK功率谱密度--------------------------------
x1=sin(pi.*(f+fc).*Ts);
x2=sin(pi.*(f-fc).*Ts);
x3=x1./(pi.*(f+fc).*Ts);
www.eeworm.com/read/482677/6620900
m digit_baseband.m
%数字基带信号的功率谱密度
clear all;
close all;
Ts=1;
N_sample = 8; %每个码元的抽样点数
dt = Ts/N_sample; %抽样时间间隔
N = 1000; %码元数
t = 0:dt:(N*N_sample-1)*dt;
T = N*N_sample*
www.eeworm.com/read/368650/9681939
m getailijingxing.m
%随机信号各态历经性应用
%利用各态历经性获取信号的功率谱
clear all;
Fs=1000; %采样频率
%产生含有噪声的序列
var=sqrt(1/exp(1.0));
n=0:1/Fs:1;
N=length(n); %为总采样点数1001
e=
www.eeworm.com/read/350382/10745657
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/350382/10745660
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/453411/7420952
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/444759/7607319
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/444759/7607320
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/242464/13003577
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