發(fā)布時間：2018-12-16 12:10

【摘要】：使用轉(zhuǎn)發(fā)式測距觀測數(shù)據(jù)對地球靜止軌道(Geostationary orbit,GEO)衛(wèi)星進(jìn)行精密定軌時,通常認(rèn)為衛(wèi)星轉(zhuǎn)發(fā)器時延變化很小,可作為常數(shù)和衛(wèi)星軌道一并求解.事實上這個假定有一定誤差,影響了GEO衛(wèi)星定軌精度.為了研究轉(zhuǎn)發(fā)器時延對GEO衛(wèi)星精密定軌精度的影響,本文對站間單差消除衛(wèi)星轉(zhuǎn)發(fā)器時延與非差常數(shù)解算轉(zhuǎn)發(fā)器時延兩種定軌方案進(jìn)行了對比.結(jié)果發(fā)現(xiàn),轉(zhuǎn)發(fā)器時延變化對軌道的影響約為1~2 m.在此基礎(chǔ)上,固定差分方法解算的軌道及相關(guān)參數(shù),使用非差法反演瞬時轉(zhuǎn)發(fā)器時延,結(jié)果表明轉(zhuǎn)發(fā)器時延變化有明顯的周日效應(yīng).轉(zhuǎn)發(fā)器時延變化規(guī)律的發(fā)現(xiàn),為建立GEO衛(wèi)星定軌精確模型、進(jìn)一步提高GEO衛(wèi)星精密定軌以及軌道預(yù)報精度具有重要價值.
[Abstract]:When precise orbit determination of geostationary orbit (Geostationary orbit,GEO) satellite is carried out with the data of forward ranging observation, it is generally considered that the delay of satellite transponder is very small and can be solved as a constant and a satellite orbit. In fact, there is a certain error in this assumption, which affects the orbit determination accuracy of GEO satellite. In order to study the influence of transponder delay on the precision of GEO satellite orbit determination, this paper compares two orbit determination schemes: single difference cancellation satellite transponder delay and non-differential constant calculation of transponder delay. It is found that the influence of the transponder delay on the orbit is about 1 ~ 2 m. On this basis, fixed difference method is used to calculate the orbit and related parameters, and the non-difference method is used to retrieve the instantaneous transponder delay. The results show that the variation of the transponder delay has obvious diurnal effect. The discovery of the law of transponder delay is of great value for establishing the precise model of GEO satellite orbit determination and further improving the precision of GEO satellite orbit determination and orbit prediction.
【作者單位】： 宇航動力學(xué)國家重點(diǎn)實驗室;中國科學(xué)院國家授時中心;中國科學(xué)院測量與地球物理研究所 大地測量與地球動力學(xué)國家重點(diǎn)實驗室;湖北大學(xué)商學(xué)院;
【基金】：國家自然科學(xué)基金(11033004,41104021,41174015) 宇航動力學(xué)國家重點(diǎn)實驗室開放基金(2012ADL-DW0101) 大地測量與地球動力學(xué)國家重點(diǎn)實驗室開放基金(SKLGED2013-4-4-E)資助
【分類號】：TN96.1

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 歐吉坤;測量平差中不適定問題解的統(tǒng)一表達(dá)與選權(quán)擬合法[J];測繪學(xué)報;2004年04期

2 ;A new method for determination of satellite orbits by transfer[J];Science in China(Series G:Physics,Mechanics & Astronomy);2009年03期

3 艾國祥;施滸立;吳海濤;李志剛;郭際;;基于通信衛(wèi)星的定位系統(tǒng)原理[J];中國科學(xué)(G輯:物理學(xué) 力學(xué) 天文學(xué));2008年12期

4 韓延本;馬利華;喬琪源;尹志強(qiáng);艾國祥;;中國區(qū)域衛(wèi)星定位系統(tǒng)星座布局的選擇[J];中國科學(xué)(G輯:物理學(xué) 力學(xué) 天文學(xué));2008年12期

5 李志剛;楊旭海;施滸立;艾國祥;喬榮川;馮初剛;;轉(zhuǎn)發(fā)器式衛(wèi)星軌道測定新方法[J];中國科學(xué)(G輯:物理學(xué) 力學(xué) 天文學(xué));2008年12期

6 黃勇;胡小工;黃s，

本文編號：2382314