导航定位学报
導航定位學報
도항정위학보
Journal of Navigation and Positioning
2015年
3期
56-58,94
,共4页
编队卫星%基线测量%卫星质心%相对定轨
編隊衛星%基線測量%衛星質心%相對定軌
편대위성%기선측량%위성질심%상대정궤
formation flying satellites%baseline determination%satellite center-of-gravity%relative orbit determination
针对卫星质心测量误差影响编队卫星基线的问题,首先从编队卫星相对定轨的原理出发,分析了卫星质心误差的影响,然后考虑到编队卫星有效基线通常为载荷天线之间的基线,提出了天线基线与质心基线的定义。采用2015-12-08两颗编队卫星的实测数据,计算分析了卫星质心测量误差对质心基线和天线基线的影响,结果表明:卫星质心测量误差对质心基线的影响明显大于对天线基线的影响;卫星质心测量误差对天线基线的影响约为质心测量误差的10%。
針對衛星質心測量誤差影響編隊衛星基線的問題,首先從編隊衛星相對定軌的原理齣髮,分析瞭衛星質心誤差的影響,然後攷慮到編隊衛星有效基線通常為載荷天線之間的基線,提齣瞭天線基線與質心基線的定義。採用2015-12-08兩顆編隊衛星的實測數據,計算分析瞭衛星質心測量誤差對質心基線和天線基線的影響,結果錶明:衛星質心測量誤差對質心基線的影響明顯大于對天線基線的影響;衛星質心測量誤差對天線基線的影響約為質心測量誤差的10%。
침대위성질심측량오차영향편대위성기선적문제,수선종편대위성상대정궤적원리출발,분석료위성질심오차적영향,연후고필도편대위성유효기선통상위재하천선지간적기선,제출료천선기선여질심기선적정의。채용2015-12-08량과편대위성적실측수거,계산분석료위성질심측량오차대질심기선화천선기선적영향,결과표명:위성질심측량오차대질심기선적영향명현대우대천선기선적영향;위성질심측량오차대천선기선적영향약위질심측량오차적10%。
To the question of the influence of satellite center-of-gravity measurement error on the baseline of formation fly-ing satellites,the influence of satellite center-of-gravity measurement error was analyzed from the principle of formation flying satellites relative orbit determination firstly.Then,in view of the useful baseline is usually the distance between the payload in-struments of two satellites,the definition of the baseline of two payload instruments antennas and the baseline of two satellites center-of-gravity were established.The baseline of two formation flying satellites center-of-gravity and the baseline of two an-tennas were computed by using the global positioning system data observed December 8,2005.The results of computation show that the measurement error of the satellite center-of-gravity makes the baseline error of two satellites center-of-gravity greatly than that of two antennas.The two antennas baseline error is about 10 percent of the two satellites center-of-gravity baseline error.