?? transmit.m
字號:
function [BitData TransData] = Transmit( )global FLAG_AWGN;global FLAG_MULTIPATH;global Channel_Est;global Num_Bit;global Num_Train;% generate bits BitData = [floor(2 * rand(1 , Num_Bit-8)), zeros(1,8)]; % for viterbi decoding% channel codingt = poly2trellis(7, [131, 171]);Out = zeros(1, 2*Num_Bit);Out = convenc(BitData, t);% interleavingInterOut = zeros(1, 2*Num_Bit);for i=1: (2*Num_Bit/256) InterIn = Out(1+(i-1)*256 : i*256); for k=1:256 j = 16*mod((k-1), 16) + floor((k-1)/16); %分組交織 Inter1Out(k) = InterIn(j+1); end for k=1:256 j = 2*floor((k-1)/2) + mod((k+1+floor((k-1)/16)), 2); % 高低位交織 InterOut(k+(i-1)*256) = Inter1Out(j+1); endend% mapMappedData = BitMap(InterOut , 4);% generate the OFDM signalNum_Sym_OFDM = 2*Num_Bit/4/64;TransData = zeros(1, 2*Num_Bit*5/16 ); for i=1:Num_Sym_OFDM Sym_OFDM_temp = MappedData( 1+(i-1)*64 : i*64 ); Sym_OFDM_ifft = 8 * ifft( Sym_OFDM_temp , 64 ); % power normalization % add CP Sym_OFDM_CP = Sym_OFDM_ifft( 49 : end ); Sym_OFDM_ifft = [ Sym_OFDM_CP, Sym_OFDM_ifft ]; TransData(1+(i-1)*80 : i*80) = Sym_OFDM_ifft;endTrain = [zeros(1,16), 1 , zeros(1, 63)];TransData = [zeros(1, 16), Train, TransData]; % add zeros before the trainning sequences, for synchronization.?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -