function [mseq] = mseries(coefficients)
len=length(coefficients);
L=2^len-1; %所需的移位寄存器的长度
registers=[zeros(1,len-1),1]; %初始寄存器内容
mseq(1)=registers(1);
for i= 2:L
newregisters(1:len-1) = registers(2:len);
newregisters(len) = mod(sum(coefficients.*registers),2);
registers=newregisters;
mseq(i)=registers(1);
end
可以设置coefficients来控制码长
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