Mgen128.rar_大m序列

%************************************************************************* % Copyright (C) 2012 State Key Laboratory of Advanced Optical % Communication Systems & Networks of Peking University % All Right Reserved. % % Created : 2012-03-05 15:50 % Author : FEI Yongqiang (fyq@pku.edu.cn) % % File Name : Mgen.m % Abstract : generate an M sequence % % Version : 1.0 %************************************************************************** function [Mout] = Mgen128 %只完成了求出小m序列的部分 % start = [0 0 0 1 0 0]; % mlength = 63; % msq = zeros(1,63); % state = start; % % %Poly = fliplr(gfprimdf(n)); %1000011 % % for ii = 1:mlength % state_temp = state; % output = xor(state(6),state(5)); % msq(ii) = output; % state(2:6) = state_temp(1:5); % state(1) = output; % end % % Mout = msq; % end syncpn_seq = zeros(1,127); r = 7; state = [0 0 0 0 1 0 0]; for p = 1:127 syncpn_seq(p) = xor(state(1),state(4)); temp = xor(state(1),state(4)); state(1:r-1) = state(2:r); state(r) = temp; end % syncpn_seq = (1 - 2*syncpn_seq)+j*(1 - 2*syncpn_seq); %　０-->1+j, 1-->-1-j % syncpn_seq = syncpn_seq/sqrt(Para_sys.carri_total); % 能量归一化 % % syncpn_seq = syncpn_seq/sqrt(2); Mout = syncpn_seq(1:118); Mout = [Mout,[0 0 0 0 0 0 0 1 0 0]];