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 -