Frequency Stability Estimation of BDS GEO On‐Board Clock Based on Satellite Transponded Carrier Doppler
作者单位：College of Electronic Science and EngineeringNational University of Defense Technology PLA Unit 94789
会议名称：《第五届中国卫星导航学术年会》
会议日期：2014年
学科分类：08[工学] 080401[工学-精密仪器及机械] 081105[工学-导航、制导与控制] 0804[工学-仪器科学与技术] 0825[工学-航空宇航科学与技术] 0811[工学-控制科学与工程]
关 键 词：BeiDou Navigation Satellite System Transponded Carrier Doppler Satellite On‐Board Clock Frequency Stability
摘 要：In GNSS systems,frequency stability of satellite on‐board clock will affect satellite clock offset modeling and prediction,and then impact the accuracy of positioning and timing,so frequency stability estimation of satellite on‐board clock is of great significance for GNSS *** paper proposes a frequency stability estimation method for BDS GEO on‐board clock based on satellite transponded carrier *** offset of on‐board clock is estimated by self‐transmitting and self‐receiving transponded carrier doppler of ground station,and then the frequency stability can be *** realization principle of the method is analyzed,and is validated using BDS *** show that frequency stability estimation results of this method are basically consistent with that of network method and the relative deviation is less than 10% within average interval of 1000s.