本文選題：北斗衛(wèi)星導(dǎo)航系統(tǒng) + 精密定軌��； 參考：《測繪學(xué)報》2017年04期

【摘要】：針對北斗衛(wèi)星姿軌控后的軌道快速確定難題,系統(tǒng)地研究了基于多項式擬合和基于星歷擬合兩種運動學(xué)定軌方法,推導(dǎo)建立了相應(yīng)的運動學(xué)定軌模型。同時針對接收機系統(tǒng)差和頑固多徑問題,利用基于并置比對的接收機系統(tǒng)差解算方法和CNMC的多徑削弱方法,實現(xiàn)了超短弧跟蹤條件下接收機數(shù)據(jù)質(zhì)量的有效控制。利用北斗GEO/IGSO/MEO衛(wèi)星的實測偽距數(shù)據(jù)進(jìn)行了試驗驗證,結(jié)果表明在10min超短弧跟蹤條件下,GEO、IGSO和MEO衛(wèi)星的運動學(xué)定軌位置精度分別為3.27m、8.19m和5.90m,實現(xiàn)了超短弧跟蹤條件下的北斗衛(wèi)星快速定軌,滿足了衛(wèi)星機動期間的北斗RDSS服務(wù)對軌道精度的需求,為北斗RDSS服務(wù)走向全球提供了技術(shù)支撐。
[Abstract]:Aiming at the problem of fast orbit determination after beidou satellite attitude and orbit control, two kinematic orbit determination methods based on polynomial fitting and ephemeris fitting are studied systematically, and the corresponding kinematic orbit determination model is derived. At the same time, aiming at the problem of receiver system difference and persistent multipath, the method of receiver system difference calculation based on parallel alignment and the method of CNMC multipath weakening are used to realize the effective control of receiver data quality under the condition of ultrashort arc tracking. The pseudo-range data of Beidou GEO/IGSO/MEO satellite are used to test and verify, The results show that under the condition of 10min ultra-short arc tracking, the kinematic orbit determination accuracy is 3.27 m ~ 8.19 m and 5.90 m, respectively. The fast orbit determination of Beidou satellite is realized under the condition of ultra-short arc tracking. It can meet the orbit accuracy requirement of Beidou RDSS service during satellite maneuver, and provide technical support for Beidou RDSS service to go global.
【作者單位】： 北京衛(wèi)星導(dǎo)航中心;大地測量與地球動力學(xué)國家重點實驗室;
【基金】：國家自然科學(xué)基金(41204022;41374038) 大地測量與地球動力學(xué)國家重點實驗室開放研究基金(SKLGED2017-3-3-E)~~
【分類號】：P228.4

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本文編號：1946835