MATLAB 添加高斯噪声awgn函数(需要wgn函数)批注本地保存成功开通会员云端永久保存去开通 functiony=awgn(varargin) %AWGN Add white Gaussian noise to a signal. % Y = AWGN(X,SNR) adds white Gaussian noise to X. The SNR is in dB. % The power of X is assumed to be 0 dBW. If X is complex...
QPSK_map_encode2 = [-1-1i, -1+1i,1+1i, 1-1i]; %The bi2de function is used to convert the binary data to decimal values, %which are then used as indices to look up the corresponding QPSK symbol in the mapping table QPSK_data = QPSK_map(bi2de(QPSK_reshaped_binary_data,'left-...
MATLAB-添加高斯噪声awgn函数(需要wgn函数).docx,function y=awgn(varargin) %AWGN Add white Gaussian noise to a signal. % Y = AWGN(X,SNR) adds white Gaussian noise to X. The SNR is in dB. % The power of X is assumed to be 0 dBW. If X is complex, then % AWGN
Use the reset (RandStream) function on the randobject before passing it as an input to awgn except when the input is a dlarray object. Provide randobject in a known state as an input to awgn except when the input is a dlarray object. For more information, see RandStream. To reproduce ...
MATLAB-添加高斯噪声awgn函数(需要wgn函数) 下载积分:600 内容提示: function y=awgn(varargin) %AWGN Add white Gaussian noise to a signal. % Y = AWGN(X,SNR) adds white Gaussian noise to X. The SNR is in dB. % The power of X is assumed to be 0 dBW. If X is complex, then % AWGN...
文档热度: 文档分类: IT计算机--matlab 系统标签: awgnsigpowervararginwgnreqsnrmeasmode functiony=awgn(varargin)%AWGNAddwhiteGaussiannoisetoasignal.%Y=AWGN(X,SNR)addswhiteGaussiannoisetoX.TheSNRisindB.%ThepowerofXisassumedtobe0dBW.IfXiscomplex,then%AWGNaddscomplexnoise.%%Y=AWGN(X,SNR,SIGPOWER)whenSI...
1、在matlab中无论是wgn还是awgn函数,实质都是由randn函数产生的噪声。 即:wgn函数中调用了 randn函数,而awgn函数中调用了 wgn函数。根据awgn的实现代码可以知道”向已知信号添加某个信噪比(SNR)的高斯 白噪声“,即:awgn(x,snr,' measured ,'linear'),命令的作用是对原信号 x添加 信噪比(比值)为SNR的噪声,在...
下面是MATLAB AWGN函数的源代码: function [n] = awgn(s, snr) % s: input signal vector or matrix % snr: signal-to-noise ratio in dB % n: output signal with added noise % calculate noise power signalPower = mean(abs(s(:)).^2); noisePower = signalPower / (10^(snr/10)); % gen...
七、matlab程序通过以上的分析与资料查找,现附matlab仿真程序如下子函数(m-file) % 16QAM.m function [p]= cm_sm41(snr_in_dB) N=10000; d=1; Eav=10*d.^2; snr=10.^(snr_in_dB/10); sgma=sqrt(Eav./(8*snr)); M=16; for i=1:N temp=rand; dsource(i)=1+floor(M*temp); end; ...
function y = awgn(varargin) %AWGN Add white Gaussian noise to a signal. % Y = AWGN(X,SNR) adds white Gaussian noise to X. The SNR is in dB. % The power of X is assumed to be 0 dBW. If X is complex, then % AWGN adds complex noise. ...