matlab_OFDM中添加循环前缀和插入导频

%原來的块狀插入导頻函數,不完善,已棄用 function [output_with_pilot,pilot_num,pilot_code]=insert_pilot(pilot_inter,pilot_symbol_bit,output); [c,s]=size(output); pilot_num= floor(s/pilot_inter)+1; pilot_map=qam16(pilot_symbol_bit); pilot_code= pilot_map; %output=zeros(c,s+pilot_num); turn=reshape(conj(output'),pilot_inter,c*s/pilot_inter); pilot_sequence=zeros(1, c*s/pilot_inter); for a=1:c*s/pilot_inter pilot_sequence(1,a)= pilot_map; end with_pilot1=[pilot_sequence;turn]; [c2,s2]=size(with_pilot1); with_pilot2=reshape(with_pilot1,c2*s2/c,c); output_with_pilot1= conj(with_pilot2'); pilot_sequence_last=zeros(c,1); for a=1:c pilot_sequence_last(a,1)= pilot_map; end output_with_pilot=zeros(c,s+pilot_num); output_with_pilot=[output_with_pilot1,pilot_sequence_last]; end