New Fast-acquisition Algorithm of PN code in Direct Sequence Spread-spectrum Systems
Zuo Ji-zhang · Jisuanji fangzhen · 2009
The acquisition algorithm presented in 3 degressed when intial phase is inaccurate.We propose a optimum searching method with a Pre-loop Phase Estimator for the fast-acquisition of PN code, the analytic formulation of mean acquisition time and variance is derived by Marokv Model.And the performance of acquisition is simulated in AWGN channel.The result of computer simulation indicates that the algorithm can improve the performance and be more practical.