用MATLAB编写的产生M序列的方法，大家可以看看哈.zip

function Sequence=MSequence(SF); %这里的SF代表输出的m序列的长度加1,SF=2^n，n=4 SFlog2=log2(SF); %SFlog2即是n=log2(SF) if rem(SFlog2,1)~=0, error('SF must be an integer power of 2');end %R = rem(X,Y) if Y ~= 0, returns X - n.*Y where n = fix(X./Y) switch SFlog2 case 3 R=3; instate=zeros(1,3); instate(R)=1; N=2^R-1; generator=[0 1 3]; case 4 R=4; instate=zeros(1,4); instate(R)=1; N=2^R-1; generator=[0 1 4]; case 5 R=5; instate=zeros(1,5); instate(R)=1; N=2^R-1; generator=[0 2 5]; case 6 R=6; instate=zeros(1,6); instate(R)=1; N=2^R-1; generator=[0 1 6]; case 7 R=7; instate=zeros(1,7); instate(R)=1; N=2^R-1; generator=[0 3 7]; case 8 R=8; instate=zeros(1,8); instate(R)=1; N=2^R-1; generator=[0 2 3 4 8]; case 9 R=9; instate=zeros(1,9); instate(R)=1; N=2^R-1; generator=[0 4 9]; case 10 R=10; instate=zeros(1,10); instate(R)=1; N=2^R-1; generator=[0 3 10]; case 11 R=11; instate=zeros(1,11); instate(R)=1; N=2^R-1; generator=[0 2 11]; case 12 R=12; instate=zeros(1,12); instate(R)=1; N=2^R-1; generator=[0 1 4 6 12]; otherwise error('SF 8~12'); end [Sequence, Outstate]=LinearFeedbackShiftRegister(R,generator,instate,N); Sequence=2*Sequence-1;