全球定位系统2025，Vol.50Issue(3)：113-118,6.DOI:10.12265/j.gnss.2025036
Kalman滤波跟踪方法的等效环路带宽
Equivalent loop bandwidth of Kalman filter tracking method
摘要
Abstract
Digital phase-locked loop is currently the most commonly used carrier tracking technology.In order to improve the carrier tracking performance,Kalman filter tracking methods have been widely studied.However,the design parameters of these two methods are completely different,which makes it difficult to compare the tracking performance.To solve the problem,the relationship between the error feedback model of Kalman filter tracking and digital phase-locked loop is established by simplifying the processing of innovation and local carrier frequency,and the analytic expression of the equivalent loop bandwidth of Kalman filter tracking is derived.The conclusion can be used for the parameter design of Kalman filter tracking and make accurate compare between the two types of tracking algorithms.关键词
载波跟踪/数字锁相环(DPLL)/Kalman滤波/卫星导航/等效环路带宽Key words
carrier tracking/digital phase-locked loop(DPLL)/Kalman filter/satellite navigation/equi-valent loop bandwidth分类
天文与地球科学引用本文复制引用
李晔,石金晶..Kalman滤波跟踪方法的等效环路带宽[J].全球定位系统,2025,50(3):113-118,6.基金项目
国家自然科学基金(62272483) （62272483）
湖南省自然科学基金(2025JJ80349) （2025JJ80349）
