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【MATLAB】MATLAB 仿真 — 低通高斯白噪声
2022-07-04 03:55:00 【嵌入式职场】
目录
1、低通高斯白噪声
close all;
clear all;
clc;
fm = 1;
B = 2*fm; %带宽
fc = 0; %中心频率
dt = 0.001; %时间采样间隔
T = 5000; %信号时长
t = 0:dt:T;%时间范围
%生成低通高斯白噪声
N0 = 0.1; %白噪单边功率谱密度
noise = noise_nb(fc,B,N0,t);
fprintf('噪声均值为: %d\n 噪声的功率为: %d\n',mean(noise),var(noise));
figure;
subplot(211);
L=2*1e5;
plot(t(1:L),noise(1:L),'b');
xlabel('t (秒)'); ylabel('时域波
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