Paramater Estimation of DS-SS signals
Xiong Hui · Jisuanji fangzhen · 2009
It is the key to realize the recovery of the information that resolves the start of the synchronization of PN code and information code in DSSS.To solve the problem of the start estimation of the synchronization of PN code and information code,and according to the principle that the base-band signal of DS signal can be maximized through accumulation of energy,a method of using a two-dimensional search algorithm,to solve the problem of the start of synchronization of PN code and information code is proposed,and the number of information code in the pseudo-code modulation is estimated.First,the algorithm realization process has been derived theoretically,then through computer simulation,the feasibility of the algotithm is verified.The result of computer simulation shows that the algorithm can implement the start estimation of the synchronization of PN code and information code under lower SNR conditions.