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Conference Paper
Clock Offsets in TDOA Localization
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- Authors
- Nak-Seon Seong, Seong-Ook Park
- Issue Date
- 2006-10
- Citation
- International Symposium on Ubiquitous Computing Systems (UCS) 2006 (LNCS 4239), v.4239, pp.111-118
- Language
- English
- Type
- Conference Paper
- Abstract
- Time based TDOA localization systems require time or clock synchronization between receivers such as cellular base stations, satellites, and sensor nodes. Imperfection of time synchronization causes degradation in positioning accuracy. However if we know about its characteristics and how to estimate the clock offsets, the localization system can be properly calibrated to provide good quality of services. In this paper, hence, we present how to derive a localization error vector with independent clock offset, and illustrate its effect on the positioning errors, and then, provide a simple method of TDOA clock offset estimation from the observation of error vectors. © Springer-Verlag Berlin Heidelberg 2006.
- KSP Keywords
- Cellular base, Clock Synchronization, Clock offset, Localization systems, Positioning Error, Positioning accuracy, Sensor node, Time Based, Time synchronization, base station(BS), localization error