摘要
在高动态环境下,由于飞机、导弹等载体运动的速度非常快,其产生的多普勒频率非常大,利用传统方法进行信号跟踪容易引起环路失锁。针对该问题,采用INS(惯性导航设备)辅助环路跟踪,INS能够实时提供载体运动的速度,从而消除多普勒频率的影响,使环路保持稳定。对INS辅助的北斗二代用户机跟踪算法进行了研究,仿真分析表明,在高动态环境下,INS辅助的跟踪算法能够实时跟踪到卫星信号,提高了跟踪性能。
The velocity for moving carrier,such as airplane,missile and so on,is very quick,which induces great Doppler Frequency under high dynamic environment.The traditional method for tracking signal will can easily cause the loop loses lock.To solve the problem,a method has been introduced to assist circuit tracking using INS,which can provide the real-time velocity of moving carrier.The method can effectively eliminate the effect of Doppler Frequency to hold the circuit stable.In this paper,The BD2 receiver tracking algorithm aided by INS is researched tracking algorithm for simulations verify that the under high tracking algorithm using INS can real-time track the satellite signal and improve the tracking performance under high dynamic environment.
出处
《火力与指挥控制》
CSCD
北大核心
2014年第4期177-180,共4页
Fire Control & Command Control
关键词
高动态
跟踪环路
载波跟踪
INS
high dynamic
tracking loop
ins
carrier tracking
