测站位置偏差引起的卫星定向偏差分析

doi:10.3969/j.issn.1001-506X.2020.05.20

系统工程与电子技术 ›› 2020, Vol. 42 ›› Issue (5): 1124-1130.doi: 10.3969/j.issn.1001-506X.2020.05.20

测站位置偏差引起的卫星定向偏差分析

侯雨果(), 蔡伟(), 张新帅()

火箭军工程大学导弹工程学院, 陕西西安 710025

收稿日期:2019-11-07 出版日期:2020-04-30 发布日期:2020-04-30
作者简介:侯雨果(1992-),男,博士研究生,主要研究方向为定位定向与基准传递技术。E-mail:13619227734@163.com|蔡伟(1974-),男,教授,博士,主要研究方向为定位定向与基准传递技术。E-mail:clwn@163.com|张新帅(1990-),男,博士研究生,主要研究方向为定位定向与基准传递技术。E-mail:zxs_gary@163.com
基金资助:
装备科研项目资助课题

Analysis of satellite orientation bias caused by station position deviation

Yuguo HOU(), Wei CAI(), Xinshuai ZHANG()

College of Missile Engineering, Rocket Force University of Engineering, Xi'an 710025, China

Received:2019-11-07 Online:2020-04-30 Published:2020-04-30
Supported by:
装备科研项目资助课题

摘要/Abstract

摘要：

采用导航卫星进行方向测定时,测站位置偏差对方位角精度产生非线性影响。基于此,利用坐标转换及泰勒公式,理论推导了当地坐标系中的位置偏差与定向偏差之间的数学模型,对位置偏差引起的定向偏差进行了分析,之后通过实测数据对数学模型进行了验证。分析结果表明,位置偏差对定向偏差的影响与测站经纬度有关,纬度越高,相同的位置偏差引起的定向偏差越大;当地坐标系中东向位置偏差为影响定向偏差的主要因素,北向位置偏差影响很小，可以忽略;基线高程差也会影响定向的精度。

关键词: 位置偏差, 卫星定向偏差, 坐标转换, 泰勒公式

Abstract:

In satellite orientation, the deviation of the station position has a non-linear effect on the azimuth accuracy. In this paper, the mathematical model between the position deviation and the orientation bias in the local coordinate system is derived theoretically by using the coordinate transformation and the Taylor formula, the orientation bias caused by the position deviation is analyzed, and then the mathematical model is verified by using real measured data. The analysis results show that the effect of the position deviation on the orientation bias is related to the latitude and longitude of the station. The higher the latitude is, the larger the orientation bias caused by the same position deviation get. In the local coordinate system, the eastward position deviation is the main factor affecting the orientation bias, and the influence of the northward position deviation is negligible. The elevation difference of the baseline also affects the accuracy of orientation.

Key words: position deviation, satellite orientation bias, coordinate transformation, Taylor formula

中图分类号:

TN967.1

侯雨果, 蔡伟, 张新帅. 测站位置偏差引起的卫星定向偏差分析[J]. 系统工程与电子技术, 2020, 42(5): 1124-1130.

Yuguo HOU, Wei CAI, Xinshuai ZHANG. Analysis of satellite orientation bias caused by station position deviation[J]. Systems Engineering and Electronics, 2020, 42(5): 1124-1130.

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位置偏差/m		测站所在位置
位置偏差/m		北极圈	中国最北端	中国最南端	西安
10	定向偏差/(″)	0.74	0.44	0.02	0.22
10	占比/%	3.7	2.2	0.1	1.1
50	定向偏差/(″)	3.72	2.19	0.11	1.1
50	占比/%	18.6	11.0	0.6	5.5
100	定向偏差/(″)	7.44	4.37	0.22	2.21
100	占比/%	37.2	21.9	1.1	11.1

高程差1 m	位置偏差/m
高程差1 m	10	100	300
额外定向偏差/(″)	0.03	0.33	0.99
占比/%	0.15	1.5	5

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测站位置偏差引起的卫星定向偏差分析

Analysis of satellite orientation bias caused by station position deviation

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