TY - GEN
T1 - GPS orbit determination using several reference
AU - Nomura, Masashi
AU - Tanaka, Toshiyuki
AU - Yonekawa, Masashi
PY - 2007/1/1
Y1 - 2007/1/1
N2 - GPS is used in many situations and the accuracy of measurement satisfies various services in several fields. However the improvement of accuracy is requested in many fields. For precise positioning by GPS, it is necessary to estimate high accuracy orbits of GPS satellites. Although orbits of GPS satellites are calculated from ephemeris, the orbits do not correspond with actual orbits. Therefore, we used several reference stations and calculated the orbits by the following new algorithm; inverse GPS and RARR (Range And Range Rate). Inverse GPS means that reference stations are considered as satellites and satellite as receiver. It is mainly used to trace animals or cars. RARR is the method of orbit estimation of other satellites and we use range rate to calculate the satellite orbit. In inverse GPS, we could calculate the orbits more accurately than the orbits from ephemeris. In RARR, we showed an effectiveness of our method.
AB - GPS is used in many situations and the accuracy of measurement satisfies various services in several fields. However the improvement of accuracy is requested in many fields. For precise positioning by GPS, it is necessary to estimate high accuracy orbits of GPS satellites. Although orbits of GPS satellites are calculated from ephemeris, the orbits do not correspond with actual orbits. Therefore, we used several reference stations and calculated the orbits by the following new algorithm; inverse GPS and RARR (Range And Range Rate). Inverse GPS means that reference stations are considered as satellites and satellite as receiver. It is mainly used to trace animals or cars. RARR is the method of orbit estimation of other satellites and we use range rate to calculate the satellite orbit. In inverse GPS, we could calculate the orbits more accurately than the orbits from ephemeris. In RARR, we showed an effectiveness of our method.
KW - GPS(Global Positioning System)
KW - Inverse GPS
KW - Orbit
KW - RARR
KW - Reference station
UR - http://www.scopus.com/inward/record.url?scp=50249084037&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=50249084037&partnerID=8YFLogxK
U2 - 10.1109/SICE.2007.4421271
DO - 10.1109/SICE.2007.4421271
M3 - Conference contribution
AN - SCOPUS:50249084037
SN - 4907764286
SN - 9784907764289
T3 - Proceedings of the SICE Annual Conference
SP - 1770
EP - 1773
BT - SICE Annual Conference, SICE 2007
PB - Society of Instrument and Control Engineers (SICE)
T2 - SICE(Society of Instrument and Control Engineers)Annual Conference, SICE 2007
Y2 - 17 September 2007 through 20 September 2007
ER -