Characteristics analysis of DOPs for Dual-GNSS constellations with uncertain clock offset
| Autor: | Tantan Zhao, Gangming Lv, Man Yao, Qiuli Dong |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Dilution of precision
010504 meteorology & atmospheric sciences Computer science business.industry 010502 geochemistry & geophysics 01 natural sciences GNSS applications Global Positioning System Key (cryptography) Satellite business Algorithm 0105 earth and related environmental sciences Constellation |
| Zdroj: | WCSP |
| DOI: | 10.1109/wcsp.2017.8171188 |
| Popis: | Satellite selection is an important technology in Global Navigation Satellite Systems (GNSS), for which the dilution of precision (DOP) serves as the key performance metric. Selecting a satellites set with lower DOP often results more accurate positioning and timing. In this paper, the characteristics of DOP for dual-GNSS constellations is studied, where an uncertain clock offset is assumed between the two GNSS systems. Specifically, we analyzed the DOP changes of adding one more satellite to the existing constellation. Besides, the best constellation combination in dual-GNSS is discussed under fixed geometric distribution assumption. The results are verified through numerical examples. |
| Databáze: | OpenAIRE |
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