摘要
针对GPS接收机应用于精确打击武器中存在的高动态问题,研究了基于高阶锁相环的GPS信号的载波接收技术。分析了三阶锁相环的高动态跟踪性能,探讨了三阶锁相环在跟踪瞬间高动态信号时存在的问题,提出了连续变带宽和环路变增益的解决方法,通过仿真分析和实际测试验证了方法的有效性。
Aimed at the high dynamic problem of GPS receivers in precise attack weapons,a GPS receiver with high order phase-lock loop is studied.The high dynamic tracking performance of a third-order loop is analyzed and the problem in tracking high dynamic GPS signals is investigated.Then,some methods are put forward to solve this problem,such as the bandwidth and the loop gain changed continuously.Simulation results show that these methods are effective.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2011年第12期1443-1447,共5页
Acta Armamentarii
关键词
信息处理技术
精确打击武器
高动态
GPS接收
高阶锁相环
information processing
precise hitting weapon
high dynamic
GPS receiver
high order phase-lock loop
