function?[Signal_NoiseNoise]?=?AWGN2（SourceSNR）
global?NOISE_POWER;


SIGNAL_SIZE=length（Source）;
%?SNR1?=?10^（SNR/10）;??%將dB轉(zhuǎn)化為十進(jìn)制
%?Ps?=?sum（Source.^2）/SIGNAL_SIZE;??%發(fā)送信號(hào)能量
%?Ps?=?Ps/2;
%?Pn?=?Ps/SNR1;??%噪聲信號(hào)能量
%?Sigma?=?sqrt（Pn）;?%噪聲信號(hào)幅度
%?Noise?=?Sigma*randn（1SIGNAL_SIZE）;
snr_ratio=10^（SNR/10）;
Ps=NOISE_POWER*snr_ratio;
amplitude=sqrt（Ps*2）;
Sigma?=?sqrt（NOISE_POWER）;
Noise?=?Sigma*randn（1SIGNAL_SIZE）;
Signal_Noise?=?amplitude*Source+Sigma*randn（1SIGNAL_SIZE）;??%經(jīng)過(guò)0均值高斯白噪聲信道的待接收信號(hào)

?屬性????????????大小?????日期????時(shí)間???名稱
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?????文件????????562??2012-03-27?16:07??BOC\AWGN2.m

?????文件???????2685??2012-03-27?16:07??BOC\boc1_1.m

?????文件???????1464??2012-03-27?16:07??BOC\BOCcode1.m

?????文件???????1910??2012-03-27?16:07??BOC\Hmain1.m

?????文件???????3412??2012-03-29?16:38??BOC\huxiangguan.m

?????文件???????1780??2012-03-27?16:07??BOC\IF_signal1.m

?????目錄??????????0??2012-04-01?12:40??BOC

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????????????????11813????????????????????7