m序列自相关matlab代码

以下是MATLAB代码实现m序列自相关的示例：

function autocorrelation = mseq_autocorrelation(fbconnection)
n = length(fbconnection);
N = 2^n-1;
register = [zeros(1,n-1) 1];

mseq(1) = register(n);
for i = 2:N
    newregister(1) = mod(sum(fbconnection.*register), 2);
    for j = 2:n
        newregister(j) = register(j-1);
    end
    register = newregister;
    mseq(i) = register(n);
end

autocorrelation = xcorr(mseq);
end

使用以上代码，可以计算出m序列的自相关。输入参数`fbconnection`代表反馈系数，例如``表示各寄存器的初始状态。调用该函数会返回m序列的自相关结果。

请注意，以上代码仅展示了m序列自相关的实现方法，并未完整编写整个m序列生成的代码。如需完整代码，请参考中提供的MATLAB实现m序列生成的代码。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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