上海航天
上海航天
상해항천
AEROSPACE SHANGHAI
2012年
1期
60-63
,共4页
GPS%人造卫星%轨道摄动%广播星历参数
GPS%人造衛星%軌道攝動%廣播星歷參數
GPS%인조위성%궤도섭동%엄파성력삼수
Globule position system%Satellite%Orbit perturbation%Broadcast ephemeris parameter
考虑导航卫星受地球周期性的摄动力影响，提出了一种改进的导航卫星星历参数模型，给出了模型参数的计算方法和用该模型外推卫星轨道的计算步骤。仿真计算结果表明：该广播星历参数模型外推能力强，可较好地拟合卫星运动轨道。
攷慮導航衛星受地毬週期性的攝動力影響，提齣瞭一種改進的導航衛星星歷參數模型，給齣瞭模型參數的計算方法和用該模型外推衛星軌道的計算步驟。倣真計算結果錶明：該廣播星歷參數模型外推能力彊，可較好地擬閤衛星運動軌道。
고필도항위성수지구주기성적섭동력영향，제출료일충개진적도항위성성력삼수모형，급출료모형삼수적계산방법화용해모형외추위성궤도적계산보취。방진계산결과표명：해엄파성력삼수모형외추능력강，가교호지의합위성운동궤도。
An improved model was introduced based on the effect of periodic perturbation of the earth gravitation on the navigation satellite in the paper. The method of solving broadcast ephemeris parameters and the position algorithm of the model were given out. The simulation computation results showed that the model had strong ability to predict the orbit parameters of the satellite very accurately.
