Construction method for optical orthogonal signature graph codes with autocorrelation constraint of 1 and autocorrelation constraint of 2
A construction method and cross-correlation technology, applied in the field of communication, can solve the problems of unpractical construction method, large number of code words, and difficult construction method.
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[0042] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.
[0043] figure 1 It is a flow chart of the construction method of the optical orthogonal signature pattern code whose autocorrelation constraint is 1 and cross-correlation constraint is 2 in the present invention, as figure 1 Shown, a kind of autocorrelation constraint is 1, the construction method of the optical orthogonal signature pattern code that cross-correlation constraint is 2, this construction method comprises the following steps:
[0044] S1. Construct a two-dimensional integer pair table M;
[0045] S2. Construct n integer pair tables N according to the number of codewords n and the code weight w 1 ,N 2 ,...,N n , in turn from the integer pair list N i In (i=1,2,...,n), the number is taken according to t...
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