本文選題：北斗衛(wèi)星導(dǎo)航系統(tǒng)　切入點(diǎn)：GEO衛(wèi)星　出處：《國防科技大學(xué)學(xué)報(bào)》2014年01期 　論文類型：期刊論文

【摘要】：針對北斗GEO用戶算法需要進(jìn)行5°傾角的坐標(biāo)旋轉(zhuǎn)處理這一過程,提出了采用經(jīng)典廣播星歷參數(shù)用戶算法直接解算北斗GEO衛(wèi)星位置的改進(jìn)方法,并同時(shí)給出了相應(yīng)的基于第二類無奇點(diǎn)根數(shù)的廣播星歷擬合算法。該算法采用第二類無奇點(diǎn)軌道根數(shù)代替經(jīng)典軌道根數(shù),解決了由GEO軌道的小傾角特性引起的經(jīng)典廣播星歷參數(shù)擬合過程中法化矩陣奇異的問題。從而避免了北斗GEO用戶算法中坐標(biāo)旋轉(zhuǎn)處理過程,減少了GEO用戶算法的計(jì)算步驟。仿真表明,提出的改進(jìn)方法在衛(wèi)星軌道擬合過程中與原算法精度相當(dāng);在衛(wèi)星軌道外推過程中與原算法相比略有精度損失,但仍滿足用戶導(dǎo)航定位精度的需求。采用實(shí)際北斗GEO星歷解算的軌道數(shù)據(jù)驗(yàn)證了改進(jìn)算法的有效性。
[Abstract]:In view of the process that Beidou GEO user algorithm needs to deal with coordinate rotation of 5 擄inclination angle, an improved method of calculating the position of Beidou GEO satellite directly by using classical broadcast ephemeris parameter user algorithm is proposed. At the same time, the corresponding broadcast ephemeris fitting algorithm based on the second kind of singular root number is given. In this algorithm, the second kind of singular orbital root number is used to replace the classical orbital root number. The singularity of the normalized matrix in the classical broadcast ephemeris parameter fitting process caused by the small inclination characteristic of the GEO orbit is solved, thus avoiding the processing of coordinate rotation in the Beidou GEO user algorithm. The calculation steps of GEO user algorithm are reduced. The simulation results show that the proposed improved method has the same accuracy as the original algorithm in the course of satellite orbit fitting, and has a slight loss of accuracy compared with the original algorithm in the process of satellite orbit extrapolation. However, the accuracy of navigation and positioning is still satisfied. The effectiveness of the improved algorithm is verified by using the orbit data of the actual Beidou GEO ephemeris.
【作者單位】： 北京理工大學(xué)信息與電子學(xué)院;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(61001128)
【分類號】：TN967.1

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 何峰;王剛;劉利;陳劉成;胡小工;黃勇;宋葉志;阮仁桂;;地球靜止軌道衛(wèi)星廣播星歷參數(shù)擬合與試驗(yàn)分析[J];測繪學(xué)報(bào);2011年S1期

2 阮仁桂;賈小林;吳顯兵;馮來平;;關(guān)于坐標(biāo)旋轉(zhuǎn)法進(jìn)行地球靜止軌道導(dǎo)航衛(wèi)星廣播星歷擬合的探討[J];測繪學(xué)報(bào);2011年S1期

3 高玉東;郗曉寧;王威;;GEO導(dǎo)航星廣播星歷擬合改進(jìn)算法設(shè)計(jì)[J];國防科技大學(xué)學(xué)報(bào);2007年05期

4 劉光明;廖瑛;文援蘭;朱利偉;;導(dǎo)航衛(wèi)星廣播星歷參數(shù)擬合算法研究[J];國防科技大學(xué)學(xué)報(bào);2008年03期

5 陳忠貴;劉光明;廖瑛;文援蘭;;廣播星歷參數(shù)星上自主擬合算法[J];國防科技大學(xué)學(xué)報(bào);2011年03期

6 韓星遠(yuǎn);向開恒;王海紅;;第一類無奇點(diǎn)變量的廣播星歷參數(shù)擬合算法[J];航天器工程;2011年04期

7 黃勇;胡小工;王小亞;黃s，

本文編號：1591641