基于SDP4模型的BDS卫星轨道预报精度  

Accuracy of BDS Satellite Orbit Prediction Based on SDP4 Model

作　　者：王晶晶 周超 刘相法[1] 孙志绚 WANG Jingjing;ZHOU Chao;LIU Xiangfa;SUN Zhixuan(School of Architectural Engineering,Weifang University of Science and Technology,1299 Jinguang Street,Shouguang 262700,China;Faculty of Infrastructure Engineering,Dalian University of Technology,2 Linggong Road,Dalian 116024,China;College of Mechanical and Electronic Engineering,Shandong Agricultural University,61 Daizong Street,Tai’an 271018,China)

机构地区：[1]潍坊科技学院建筑工程学院,山东省262700 [2]大连理工大学建设工程学部,大连市116024 [3]山东农业大学机械与电子工程学院,山东省271018

出　　处：《大地测量与地球动力学》2023年第8期786-790,共5页Journal of Geodesy and Geodynamics

基　　金：山东省自然科学基金(ZR2022QD100,ZR2022QE221);潍坊科技学院博士科研启动基金(2021KJBS16);潍坊科技学院学科建设专项(2021XKJS41)。

摘　　要：结合两行轨道根数(TLE)星历与SDP4模型预报BDS IGSO、GEO与MEO卫星30 d轨道,并采用GFZ事后精密星历评估轨道预报误差。将所得轨道预报误差与广播星历、历书的轨道预报误差进行对比,结果表明,本文方法轨道预报精度显著优于广播星历与历书。Using two-line element(TLE)ephemeris combined with SDP4 model,we predict the 30-day orbits of BDS IGSO,GEO and MEO satellites.We evaluate the orbit prediction errors using GFZ precise ephemeris.Then,we compare the orbit prediction errors of this method with the orbit prediction errors of broadcast ephemeris and almanac.The results show that the orbit prediction accuracy of our method is significantly better than that of broadcast ephemeris and almanac.

关 键 词：BDS卫星 轨道预报 TLE SDP4模型 精度 

分 类 号：P228[天文地球—大地测量学与测量工程]