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Time Delay Filtering in Ultra-tightly Integrated Tracking-loops Design


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Time Delay Filtering in Ultra-tightly Integrated Tracking-loops Design
SONG Gao-shunWANG Chang-mingCHEN Yi-chaoLU Jian-shan
School of Mechanical Engineering,NUST,Nanjing 210094,China
ultra-tightly integrated tracking-loops inertial navigation system time delay filtering phase-locked loop
In order to solve the problem that the constant of systemic response time increases when the inertial navigation system(INS)is adopted in the ultra-tightly integrated tracking-loops,the tracking-loops based on the time delay filtering are proposed.The mathematical model of the INS-assisted phase-locked loop(PLL)is introduced.The error model of INS-assisted global positioning system is founded and analyzed.The relativity between the loop tracking errors and the updating time is defined.The time delay filtering is applied in the structure design of the tracking-loops to reduce the relativity of time.The theory and calculation results prove that,by using the time delay filtering,the constant of the systemic response time is reduced obviously and the property of the tracking-loops is improved.


[1] 董绪荣,唐斌,蒋德. 卫星导航软件接收机原理与设计[M]. 北京: 国防工业出版社, 2008.
[2] 胡锐,薛晓中,孙瑞胜,等. 基于DSP+FPGA 的高动态GPS 信号载波环路设计[J]. 南京理工大学学报, 2010, 34( 1) : 75-79.
[3] Lian P. Improving tracking performance of PLL in high dynamic applications[D]. Calgary,Canada: Department of Geomatics Engineering,University of Calgary, 2004.
[4] Nesreen I Z, James L G. Extended Kalman filter-based tracking of weak GPS signals under high dynamic conditions [A]. Proceedings of ION GNSS 2004[C]. Long Beach,California: The Institute of Navigation, 2004: 20 -31.
[5] Petovello M G,Lachapelle P. Comparison of vector-based software receiver implementations with application to ultra-tight GPS/INS integration[A]. Proceedings of ION GNSS 2006[C]. Fort Worth,Texas: The Institute of Navigation, 2006: 1790-1799.
[6] 胡小平. 自主导航理论与应用[M]. 长沙: 国防科技大学出版社, 2002.
[7] Peng Xie. Improving carrier phase reacquisition time using advanced receiver architectures [D]. Calgary, Canada: Department of Geomatics Engineering, University of Calgary, 2010.
[8] Alban S. Design and performance of a robust GPS/INS attitude system for automobile applications[D]. Stanford, USA: Department of Aeronautics and Astronautics,The University of Stanford, 2004: 111-151.
[9] 周坤芳,吴晞,孔键. 紧耦合GPS/INS 组合特性及其关键技术[J]. 中国惯性技术学报, 2009, 17( 1) : 42-45.
[10] Kaplan. GPS 原理与应用[M]. 2 版. 寇艳红,译. 北京: 电子工业出版社, 2007.
[11] 董明晓,梅雪松. 时滞滤波理论及其工程应用[M].北京: 科学出版社, 2008.
[12] 曾庆双,李仁,陈希军. 基于软件定义无线电的紧耦合GNSS /INS 组合导航结构[J]. 中国惯性技术学报, 2010, 18( 5) : 567-573.
[13] Gao Guojian. INS-assisted high sensitivity GPS receivers for degraded signal navigation[D]. Calgary,Canada: Department of Geomatics Engineering,University of Calgary, 2007.


Last Update: 2012-10-12