PILOT CHANNEL TRACKING METHOD BASED ON MULTIPATH BARYCENTER TRACKING LOOP

摘要

A pilot channel tracking method based on multipath barycenter tracking loop, comprising: 1) estimating parameter of multipath fading channel; 2) calculating multipath energy window center; 3) adjusting loop-filter and spread sequence code phase. The present invention does not need to individually track each delay path, thereby advancing a tracking performance of spread receiver and a stability of timing restoring. For a tracking of pilot signal transmitted by multi-transmitting signal source, only a multipath channnel estimator and a multipath energy window barycenter calculator are made in TDM, thereby saving hardware resource. Therefore, an integral new type coherent spread receiver can be constituted by cooperating with other part each other.