Szczegóły publikacji
Opis bibliograficzny
High-rate monitoring of satellite clocks using two methods of averaging time / Kamil MACIUK, Paulina LEWIŃSKA // Remote Sensing [Dokument elektroniczny]. — Czasopismo elektroniczne ; ISSN 2072-4292. — 2019 — vol. 11 iss. 23 art. no. 2754, s. 1–14. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 12–14, Abstr. — Publikacja dostępna online od: 2019-11-22. — P. Lewińska - dod. afiliacja: University of York, Department of Computer Science, Heslington, UK
Autorzy (2)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 126077 |
|---|---|
| Data dodania do BaDAP | 2019-12-19 |
| Tekst źródłowy | URL |
| DOI | 10.3390/rs11232754 |
| Rok publikacji | 2019 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Remote Sensing |
Abstract
Knowledge of the global navigation satellite system (GNSS) satellite clock error is crucial in real-time precise point positioning (PPP), seismology, and many other high-rate GNSS applications. In this work, the authors show the characterisation of the atomic GNSS clock’s stability and its dependency on the adopted orbit type using Allan deviation with two methods of averaging time. Four International GNSS Service (IGS) orbit types were used: broadcast, ultra-rapid, rapid and final orbit. The calculations were made using high-rate 1 Hz observations from the IGS stations equipped with external clocks (oscillators). The most stable receiver oscillator was chosen as a reference clock. The results show the advantage of the newest GPS satellite block with respect to the other satellites. Significant differences in the results based on the orbit type used have not been recorded. Many averaging time methods used in Allan deviation (ADEV) show the clock’s fluctuations, usually smoothed in 2n s averaging times.