ofdm matlab 仿真程序

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1、6t1F6WGdH5Fu'r.O,mB0Xi1k,x0Y+R$U5U5?@*x0echooff;clearall;closeall;clc;1fKf&

2、r0gU-D-_[0fprintf('OFDM仿真');wXX[in%m,ZB0tic%---------------------------------------------%B6})eu]Zx0%                  参数定义                    %3TN`Zk9x)OI6x

3、K0%---------------------------------------------%中国通信网－无限分享w/`DDoK%InitializetheparameterskH#Bs4[Jo0NumLoop=1000;中国通信网－无限分享8C.e/AU
yfNumSubc=128;pK1dA?;[O0NumCP=8;k+y$EX~&y6RW0SyncDelay=0;中国通信网－无限分享0d*m;@~{*

4、.J/aC~#i(X0%子载波数           128!h

5、b%j!MTuO;Y2V0h0%位数/符号         2中国通信网－无限分享$}`k6[,N?%符号数/载波       1000p;I3sOzRR0%训练符号数         0中国通信网－无限分享8S3`V_!Deej%循环前缀长度       8  (1/16)*T+H7g/{6O2d)pJ0H]0%调制方式           4-QAMReH3HCq$y9C0%多径信道数         3中国通信网－无限分享(HF,N1{u;xH%IFFTSize 

6、         128中国通信网－无限分享`!v['u)fQ%信道最大时延       2中国通信网－无限分享%F-CW9W

7、.]I%---------------------------------------------%:g?7~&P$u3J-P(U1W0%                  QAMMODULATION             %;rrasd6z

8、0%---------------------------------------------%nS0KR2j0YSi

9、

10、'Md0%Generatetherandombinarystreamfortransmittestpk.j,F}qU;^z~-y0BitsTx=floor(rand(1,NumLoop*NumSubc)*2);%Modulate(GeneratesQAMsymbols)中国通信网－无限分享tW6F0W{y/SK%input:BitsTx(1,NumLoop*NumSubc);output:SymQAM(NumLoop,NumSubc/2)中国通信网－无限分享2w2x/eB4S2@+{Sy

11、mQAMtmp=reshape(BitsTx,2,NumLoop*NumSubc/2).';fM8POZ){j0SymQAMtmptmp=bi2de(SymQAMtmp,2,'left-msb');*YK.F/et0{0%--------------------------------------------------------------------X{ic}0%函数说明：m4Dh*TcDG0%bin2dec(binarystr)interpretsthebinarystringbin

12、arystrandreturnsthe中国通信网－无限分享Gt
ZV8A%equivalentdecimalnumber.F}~yS0pQT"FRl0%  bi2de是把列向量的每一个元素都由2进制变为10进制n

13、L`&$?0%  D=BI2DE(...,MSBFLAG)usesMSBFLAGtodeterminetheinputorientation.中国通信网－无限分享v:z7YKI
K
U;rMj_%    MSBFLAGhastwopossiblevalues,'rig

14、ht-msb'and'left-msb'. Givingar
{4Uo5J0%    'right-msb'MSBFLAGdoesnotchangethefunction'sdefaultbehavior.中国通信网－无限分享_f5b"A@&uA
l%   Givinga'left-msb'MSBFLAGflipsthei