Periodic long-short code direct sequence spread spectrum code division multiple access signal multi-pseudo-code estimation method
A technology of code division multiple access and long and short codes, which is applied in the field of multiple pseudo code estimation of period length and short code direct spread code division multiple access signals, and can solve the problem that the period length and short code direct spread code division multiple access signals cannot be estimated. , It is impossible to blindly estimate the cycle length and short code direct spread code division multiple access signal, etc., to achieve the effect of improving the estimation performance
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[0022] The implementation steps of the present invention will be further described in detail below.
[0023] Step 1, when the method for estimating multiple pseudo-codes of the cycle length and short code direct spread code division multiple access signal of the present invention is in use, at first the received cycle length short code direct spread code division multiple access signal is sampled with the spreading code chip rate, and converted For the baseband signal y(l):
[0024] y ( l ) = Σ k = 1 K A k d k ( l ) b k ( l ) c k ( l ) ...
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