Signal Acquisition and Tracking Method of GPS under Rotating Multi-antenna Conditions

It is difficult for GPS receivers to obtain continual and usable GPS signal under high dynamic rotating conditions. There has no efficacious method to measure the trajectory of high dynamic rotating carrier with high accuracy. In this paper, a method that multi-antenna are adopted to continually cover GPS satellites under rotating conditions is presented, a new acquisition and tracking tactic that is adapted to the rotating multi-antenna conditions is designed, and detailed analyses of the adaptability of this tactic is made. The simulation results indicate that the method could solve the problem of interference between several signals when several antennas are adopted to measure the rotating carrier, and preferably makes GPS receiver obtain continual GPS signal. The method provides theoretical support for the method that GPS is adopted to measure the trajectory of high dynamic rotating carrier.