CAJ | 학술논문

海洋二号(HY-2)卫星双频全球定位跟踪系统(GPS)接收机获取的GPS数据是基于非差简化动力学方法应用于HY-2卫星精密轨道确定。差分GPS载波相位数据可以消除钟差，同时利用GPS数据获得HY-2卫星轨道和GPS卫星轨道。GPS数据确定的轨道利用激光测距进行了检核，并与法国太空总署确定的轨道以及综合定轨策略确定的轨道进行了比较，HY-2卫星基于GPS数据精密轨道径向成分优于3 cm。
해양이호(HY-2)위성쌍빈전구정위근종계통(GPS)접수궤획취적GPS수거시기우비차간화동역학방법응용우HY-2위성정밀궤도학정。차분GPS재파상위수거가이소제종차，동시이용GPS수거획득HY-2위성궤도화GPS위성궤도。GPS수거학정적궤도이용격광측거진행료검핵，병여법국태공총서학정적궤도이급종합정궤책략학정적궤도진행료비교，HY-2위성기우GPS수거정밀궤도경향성분우우3 cm。
The global positioning system (GPS) data acquired by the HY-2 satellite GPS re-ceiver have been used in a dynamic orbit determination,which was based on the description of the gravitational and nongra-vitational forces in the equations of motion. The GPS carrier data were processed in a difference mode to remove clock errors. Simultaneous estimation of the HY-2 satellite orbit and GPS orbit was performed using the data in March (2012). The resulting HY-2 satellite orbits have been compared with the Centre National d’Etudes Spatiales (CNES) or-bits and reduced dynamic orbits for GPS/DORIS/SLR strategies,and in the meantime con-firmed with SLR validation. The radical component of the GPS orbit was found to agree with better than 3 cm.