Equipment Delay Calibration Technique for Two-way Time Synchronization System

doi:10.3780/j.issn.1000-758X.2011.04.004

Chinese Space Science and Technology ›› 2011, Vol. 31 ›› Issue (4): 23-29.doi: 10.3780/j.issn.1000-758X.2011.04.004

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Equipment Delay Calibration Technique for Two-way Time Synchronization System

LI Xing¹, GENG Shu-Min², LI Yuan-Ling³

（1 Beijing Institute of Tracking and Telecommunications Technology, Beijing 100094）
（2 Army 63999, Beijing 100094）（3 National University of Defense Technology, Changsha 410073）

Received:2011-03-21 Revised:2011-04-11 Published:2011-08-25 Online:2011-08-25

Abstract

Abstract: Equipment delay error is an important factor to implement two-way time synchronization in pseudo-noise code ranging system. And the accurate calibration is the key technology to reach a good time synchronization. Regarding to the equipment time delay, a new definition of equipment time delay with clear physical meaning was proposed. A scheme implementing delay calibration in two-way time synchronization was designed. The delay calibration technique was validated on the hardware platform of time synchronization station. And the experiment results show that the precision and accuracy of delay calibration reaches sub-nanosecond level.

Key words: Pseudo-noise code ranging, Equipment delay calibration, Two-way time synchronization, Satellite navigation

LI Xing, GENG Shu-Min, LI Yuan-Ling. Equipment Delay Calibration Technique for Two-way Time Synchronization System[J]. Chinese Space Science and Technology, 2011, 31(4): 23-29.

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https://journal26.magtechjournal.com/kjkxjs/EN/Y2011/V31/I4/23

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Equipment Delay Calibration Technique for Two-way Time Synchronization System

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