p = 10*log10(a); error = zeros(10,10); for k = 1:length(p) Noise_add = wgn(1,2*Length,p(k)); Receive_information = QPSKCode + Noise_add; DQPSKCode = QPSK_Decode(Receive_information, Length); Decoder = Viterbi(DQPSKCode, Length); error(i,k) = sum(abs(Decoder-Informa...
end; Error: Error in ldpc_decoder (line 57) P(i)=sum(temp(1,:));댓글 수: 2 Torsten 2024년 6월 23일 편집: Torsten 2024년 6월 23일 We cannot execute your code because H is undefined. But my guess is that "temp" is an empty matrix. Matlab ...
uncode_H=(randn(nRx,mTx)+i*randn(nRx,mTx))/sqrt(2);%Get Rayleigh channel y=sqrt(ro/mTx)*uncode_H*S_in1 + noise;% At receiver %Demodulate via ZF Equalizer G_ZF =sqrt(mTx/ro)*pinv(uncode_H); S_out=sqrt(Es)*G_ZF*y;% Symbol out of equalizer % Decoder forii=1:mTx% dete...
171 hConvEnc.PuncturePatternSource = 'Property'; hConvEnc.PuncturePattern =puncturepatternSelect(PC(b,1):PC(b,2),1); hMod = comm.PSKModulator(M, 'BitInput',true); hDemod = comm.PSKDemodulator(M, 'BitOutput',true); hVitDec = comm.ViterbiDecoder(poly2trellis(7,[133 171]),......
%% Turbo Code % Encoder: RSC (Recursive Systematic Convolution) % Decoder: BCJR iterative decoder %% Parameter declaration close all;clear all;clc; N=1e4; %Block length X=floor(2*rand(1,N)); %Information bit generation Interleaver=randperm(N); %Interleaver(random permutation of first N inte...
PSTAT Error The 'Static' attribute on properties has been removed. Use the 'Constant' attribute instead. R2008b true Table of Property Attributes FGREN Warning 'Renderer' will be removed in a future release. There is no simple replacement for this. R2022b true The Renderer property of figure...
根据校验矩阵直接进行编码:利用输入信息比特序列$s$和校验矩阵$H$求得校验比特序列 $p$ , $x = \lbrack p\ s\rbrack$ 即为编码序列。 编码序列采用BPSK调制并通过AWGN信道添加噪声。 完成以下四种译码算法的MATLAB代码实现 和积算法(Sum-Product, SP) ...
[dec_list] = SCL_CRCdecoder_llr(L, N, llr, noiseVar, info_bit_idx, G);after_decode_bit = dec_list(:,1)';% 解码之后的序列codeword_errors = sum(info_bit ~= after_decode_bit);% disp("**word_wrong_bits : " + num2str(codeword_errors));Frames_errors = Frames_errors + code...
(1,6075); %---最小和译码--- de_code=MinSumDecoder(re_waveform, H, decInter, parameter); errors=find(de_code~=codeword); eacherrornum=length(errors); if eacherrornum~=0 blockerr= blockerr+1; end blockerr errornum(i)=errornum(i)+eacherrornum; end numoferrorFrame(i)=blockerr...
% Arith07 Arithmetic encoder or decoder % Vectors of integers are arithmetic encoded, % these vectors are collected in a cell array, xC. % If first argument is a cell array the function do encoding, % else decoding is done. % % [y, Res] = Arith07(xC); % encoding ...