Visibility and geometry of global satellite navigation systems constellations

• Autorzy: Januszewski J.

Identyfikatory

DOI

10.1515/arsa-2015-0014

• Języki publikacji: EN

Abstrakty

EN

Nowadays (November 2015) there are two global fully operational satellite navigation systems, American GPS and Russian GLONASS. Two next are under construction, Galileo in Europe and BeiDou in China. As the error of observer’s position obtained from these systems depends on geometry factor DOP (Dilution Of Precision) among other things the knowledge of the number of satellites visible by this observer above given masking elevation angle Hmin and the distributions of DOP coefficient values, GDOP in particular, is very important. The lowest and the greatest number of satellites visible in open area by the observer at different latitudes for different Hmin, the percentage of satellites visible above angle H (9 intervals, each 10^O wide), distributions (in per cent) of satellites azimuths (8 intervals, each 45O wide) and GDOP coefficient values (8 intervals) for Hmin = 5^O for all these four systems at different observer’s latitudes (9 intervals, each wide 10^O wide) are presented in the paper. Additionally the lowest elevation for which the number of satellites visible at different latitudes by the observer in open area above this angle is equal 4 or 3 and the distributions (in per cent) of GDOP coefficient values for different Hmin at observer’s latitudes 50-60^O for the same four systems are showed. All calculations were made for constellation of GPS 27 satellites, GLONASS 24, Galileo 30 and BeiDou 27 MEO satellites.

Słowa kluczowe

EN

GPS constellation; GLONASS constellation; Galileo constellation; BeiDou constellation; visibility; geometry

• Wydawca: Centrum Badań Kosmicznych PAN ; De Gruyter
• Czasopismo: Artificial Satellites : Journal of Planetary Geodesy
• Rocznik: 2015
• Tom: Vol. 50, No. 4
• Strony: 169--180
• Opis fizyczny: Bibliogr. 16 poz., tab., wykr.

Twórcy

autor

Januszewski J.

• Gdynia Maritime University al. Jana Pawla II 3, 81345 Gdynia, Poland

Bibliografia

• Chatre E. (2015) Status of the Galileo Programme, Munich Satellite Navigation Summit.
• China Satellite Navigation Office (2015) Update of BeiDou Navigation Satellite System, Munich Satellite Navigation Summit.
• Hofmann-Wellenhof B., Lichtenegger H., Wasle E. (2008) GNSS - Global Navigation Satellite Systems GPS, GLONASS, Galileo, and more, Springer, Wien New York.
• Martin III H.W. (2015) GPS Status and Trends, Munich Satellite Navigation Summit.
• Januszewski J. (2010) Systemy satelitarne GSP, Galileo i inne, Warszawa, PWN (in Polish).
• Kaplan E.D., Hegarty C.J. (2006) Understanding GPS Principles and Applications, Boston London, Artech House publisher.
• Karutin S. (2015) GLONASS Program Update, Munich Satellite Navigation Summit.
• Langley R.B. (1999) Dilution of Precision, GPS World, no 5, pp. 5259.
• Specht C. (2007) System GPS, Pelplin, Wydawnictwo Bernardinum (in Polish).
• www.beidou.gov.cn
• www.esa.int
• www.glonass-ianc.rsa.ru
• www.gps.gov
• www.gpsworld.com
• www.insidegnss.com
• www.navcen.uscg.gov

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).