%張潤寧論文中多普勒補(bǔ)償問題?巴克碼（加噪聲）
%改變fd的值可以改變多普勒頻率的大小
%改變SNR的值可以改變信噪比的大小
clear?all;
T=0.2*10.^-6;?????????????????????????%子脈沖寬度T
B=1/T;????????????????????????????????%子脈沖帶寬B=1/T
fd=0.05*B??????????????????????????????%多普勒頻率fd????

SNR=20?????????????????????????????????%信噪比SNR?
Pnoise=0.01;??????????????????????????%噪聲功率Pnoise
Psignal=Pnoise*10.^（SNR/10）;??????????%信號功率Psignal
%Psignal=1;
%Pnoise=0

sequence=[1?1?1?1?1?-1?-1?1?1?-1?1?-1?1];

SeqLength=length（sequence）;??????????%序列長度P=SeqLength?

%%%%%%%%%%%%%%%%%
%加多普勒信息和噪聲
Vector=1:SeqLength;
%SignalR=BPCSeq.*exp（1i*2*pi*fd*T*Vector）;????????????????????????????????????????????????????%回波信號加多普勒信息
rand（‘state‘sum（100*clock））;
SignalR=sqrt（Psignal）*sequence.*exp（1i*2*pi*fd*T*Vector）+sqrt（Pnoise）*randn（1SeqLength）;????????

?屬性????????????大小?????日期????時間???名稱
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?????文件???????2349??2002-09-25?11:49??DopplerCom\DoplleComBarker.m

?????文件???????2501??2003-01-22?15:38??DopplerCom\DoplleComMSeries.m

?????文件???????3349??2003-01-02?11:44??DopplerCom\MultiSignal.m

?????文件????????969??2002-08-26?17:08??DopplerCom\PSLandISL.m

?????文件????????997??2002-09-24?14:32??DopplerCom\PSLandISLandMSSL.m

?????文件???????1437??2002-09-24?14:33??DopplerCom\PSLandISLandMSSLandLSNRandLPG.m

?????目錄??????????0??2008-12-28?21:51??DopplerCom

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