基于厂商天线模型和igs14.atx模型的BDS精密定轨定位精度分析  

Accuracy Analysis for BDS Precision Orbit Determination and Positioning Based on the Manufacturer and Igs14.atx Models

作　　者：彭涛 柯虎 朱鹏 杨占伟 PENG Tao;KE Hu;ZHU Peng;YANG Wei(State Energy Dadu River Basin Hydropower Development Co. , Ltd. , Chengdu 614900, China;Beijing Zhongke Anhe Technology Co., Ltd., Beijing 100160, China)

机构地区：[1]国能大渡河流域水电开发有限公司,成都614900 [2]北京中科安和科技有限公司,北京100160

出　　处：《兵器装备工程学报》2021年第S01期262-265,共4页Journal of Ordnance Equipment Engineering

摘　　要：系统评估了IGS及制造商公布的北斗卫星天线相位中心改正模型在精密定轨定位中的表现。结果表明,与IGS卫星天线相位中心改正模型相比,制造商提供的BDS-2卫星天线相位中心改正模型精度较差,导致BDS-2轨道精度较低,也使BDS-2/3联合定轨时BDS-3轨道精度降低。而IGS与卫星制造商提供的BDS-3卫星天线相位中心改正模型在精密定轨中表现基本一致。与厂商模型相比,基于IGS提供的卫星天线相位中心改正模型的BDS精密单点定位在测站高程方向具有更好的定位精度。This paper systematically evaluated the performance of BDS satellite antenna phase center correction model published by the spacecraft manufacturer and the IGS in precise orbit determination(POD)and positioning.The experiment results show that the accuracy of BDS-2 phase center correction model provided by the manufacturer is poor compared with the IGS model.This will not only cause the low accuracy of BDS-2 satellite orbit,but also lead to the decrease of BDS-3 satellite orbit accuracy when BDS-2/3 POD is conducted.The performance of BDS-3 satellite antenna phase center correction model was published by the spacecraft manufacturer and the IGS in POD was basically the same.Compared with the manufacturer model,BDS precise point positioning using the satellite antenna phase center correction model provided by the IGS has a better accuracy in the Up direction.

关 键 词：卫星天线 联合定轨 精密定轨 北斗卫星 系统评估 天线模型 BDS 轨道精度 

分 类 号：V448[航空宇航科学与技术—飞行器设计]