电讯技术Issue(2)：218-223,6.DOI:10.3969/j.issn.1001-893x.2016.02.019
海洋垂线偏差对海基站空间目标定位精度的影响
Influence of Deflection Vertical on Object Localization Accuracy in Aerocraft Measurement on Sea Base
向颉 1茅永兴 1李晓勇 1李辉芬 1陈红英1
作者信息
- 1. 中国卫星海上测控部，江苏 江阴214431
- 折叠
摘要
Abstract
The inertial navigation horizontal coordinate system ( vertical coordinate system ) needs to be transformed into the local normal coordinate system in data processing of aerocraft measurement on sea base. In this progress,the local deflection vertical data is required. On the ocean away from the mainland, the deflection vertical data is lack. The vertical coordinate system is often used as the local normal coordi-nate system. The accuracy of object localization in aerocraft measurement on sea base is affected. In launch coordinate system and J2000 inertial system,the difference between object location model with de-flection vertical and without deflection vertical is studied. The influence simulation calculation is performed for object localization model by 3 samples. The result is provided during rocket ascent and aerocraft in stage. When deflection vertical equals to 10 seconds of arc,the influence on object localization result can reach up to 200 meters. For improving aerocraft measurement accuracy on sea base,deflection vertical of aerocraft measurement data must be corrected.关键词
海基测量/空间定位/垂线偏差/定位精度Key words
aerocraft measurement on sea base/space localization/deflection vertical/localization accuracy分类
信息技术与安全科学引用本文复制引用
向颉,茅永兴,李晓勇,李辉芬,陈红英..海洋垂线偏差对海基站空间目标定位精度的影响[J].电讯技术,2016,(2):218-223,6.
