大倾角状态下数字天顶仪定位的倾斜误差分析

doi:10.3969/j.issn.1000-1093.2018.02.025

兵工学报 ›› 2018, Vol. 39 ›› Issue (2): 405-410.doi: 10.3969/j.issn.1000-1093.2018.02.025

大倾角状态下数字天顶仪定位的倾斜误差分析

张西辉，周召发，刘先一，朱文勇，杨上

（火箭军工程大学兵器发射理论与技术国家重点学科实验室，陕西西安 710025）

收稿日期:2017-06-29 修回日期:2017-06-29 上线日期:2018-04-04
作者简介:张西辉（1992—），男，硕士研究生。E-mail：785564025@qq.com
基金资助:
国家自然科学基金项目（41174162）

Tilt Error Analysis of Digital Zenith Instrument Positioning at Large Dip Angle

ZHANG Xi-hui， ZHOU Zhao-fa， LIU Xian-yi， ZHU Wen-yong， YANG Shang

(State Key Discipline Laboratory of Armament Launch Theory and Technology, Rocket Force University of Engineering, Xi'an 710025， Shaanxi, China)

Received:2017-06-29 Revised:2017-06-29 Online:2018-04-04

摘要/Abstract

摘要： 针对数字天顶仪在大倾角状态下进行天文定位时垂直轴和旋转轴之间存在的轴系误差，研究了倾角补偿值的自身修正方法，提高了倾角补偿值的自身精度。从数字天顶仪倾角补偿原理出发，提出在大倾角状态下倾角补偿值精度主要跟倾角仪的读数误差有关。经过理论分析，建立了旋转轴倾斜改正模型，推导计算出旋转轴的倾斜分量，得出了取对称观测位置的倾斜改正平均值就可以消除倾角仪读数线性漂移和零点误差的结果，通过实验对倾斜误差的消除方法进行了验证。结果显示：经过该方法对倾斜误差进行修正后，数字天顶仪的定位精度由以前的0.5″左右提高到0.3″以内。

关键词: 数字天顶仪, 天文定位, 轴系偏差, 大倾角, 倾斜误差, 倾角补偿

Abstract: The self-correction method of inclination compensation value is studied for the axis error between the vertical axis and the rotating shaft at large dip angle, and the accuracy of the inclination compensation value is improved. Based on the principle of inclination compensation of digital zenith instrument, the accuracy of inclination compensation value is proposed to be mainly related to the reading error of inclinometer. A correction model of rotation axis is established based on the theoretical analysis, and the inclination component of rotating shaft is deduced. It is concluded that the linear drift and zero error of inclinometer can be eliminated by correcting the average value of tilt errors of symmetrical observation position. The method of eliminating the tilt error is verified by experiment. The results show that the positioning accuracy of digital zenith instrument is improved from 0.5″ to 0.3″ after the correction of tilt error.Key

Key words: digitalzenithinstrument, celestialpositioning, axiserror, largetiltangle, tilterror, inclinationcompensation

中图分类号:

P128.13

张西辉，周召发，刘先一，朱文勇，杨上. 大倾角状态下数字天顶仪定位的倾斜误差分析[J]. 兵工学报, 2018, 39(2): 405-410.

ZHANG Xi-hui， ZHOU Zhao-fa， LIU Xian-yi， ZHU Wen-yong， YANG Shang. Tilt Error Analysis of Digital Zenith Instrument Positioning at Large Dip Angle[J]. Acta Armamentarii, 2018, 39(2): 405-410.

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第39卷
第2期2018 年2月兵工学报ACTA
ARMAMENTARIIVol.39No.2Feb.2018

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[2]	赵慧，熊智，王丽娜，潘加亮，郁丰，戴怡洁. 基于恒星几何构型分布的天文定位误差建模及误差特性分析[J]. 兵工学报, 2015, 36(5): 813-822.

大倾角状态下数字天顶仪定位的倾斜误差分析

Tilt Error Analysis of Digital Zenith Instrument Positioning at Large Dip Angle

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