Error analysis of line-of-sight measurement for video satellite
Compared to ground-based observation, using video satellite to track space objects and determine the orbit has a unique advantage, which can provide strong support for space mission guarantee, object identification, important spacecraft collision warning, and so on. The accuracy of line-of-sight mea...
Main Authors: | , , |
---|---|
Format: | Article |
Language: | English |
Published: |
SAGE Publishing
2017-11-01
|
Series: | Advances in Mechanical Engineering |
Online Access: | https://doi.org/10.1177/1687814017742823 |
id |
doaj-eaf09f2f44ee44878eccf5ff386f61ca |
---|---|
record_format |
Article |
spelling |
doaj-eaf09f2f44ee44878eccf5ff386f61ca2020-11-25T03:40:42ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402017-11-01910.1177/1687814017742823Error analysis of line-of-sight measurement for video satelliteXueyang Zhang0Junhua Xiang1Yulin Zhang2College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, ChinaCollege of Aerospace Science and Engineering, National University of Defense Technology, Changsha, ChinaSchool of Aerospace, Tsinghua University, Beijing, ChinaCompared to ground-based observation, using video satellite to track space objects and determine the orbit has a unique advantage, which can provide strong support for space mission guarantee, object identification, important spacecraft collision warning, and so on. The accuracy of line-of-sight measurement by video satellite directly affects the final positioning accuracy; it is very necessary to analyze and calibrate the line-of-sight measurement error. In this article, a mathematical model of line-of-sight measurement is established using the transformation from image plane to object position. The error sources and the relationship between each other are analyzed comprehensively. The error of line-of-sight measurement caused by the optical axis determination error and the object detection error are calculated, respectively, and their statistical properties are studied. Finally, a concise and practical analytic formula of the error range of line-of-sight measurement is derived. Simulation results verify the theoretical analysis, and the minimum error point of line-of-sight measurement on image plane is researched. It is indicated that the effect of the satellite attitude and the position of the object on image plane are highly coupled to the error range of line-of-sight measurement.https://doi.org/10.1177/1687814017742823 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Xueyang Zhang Junhua Xiang Yulin Zhang |
spellingShingle |
Xueyang Zhang Junhua Xiang Yulin Zhang Error analysis of line-of-sight measurement for video satellite Advances in Mechanical Engineering |
author_facet |
Xueyang Zhang Junhua Xiang Yulin Zhang |
author_sort |
Xueyang Zhang |
title |
Error analysis of line-of-sight measurement for video satellite |
title_short |
Error analysis of line-of-sight measurement for video satellite |
title_full |
Error analysis of line-of-sight measurement for video satellite |
title_fullStr |
Error analysis of line-of-sight measurement for video satellite |
title_full_unstemmed |
Error analysis of line-of-sight measurement for video satellite |
title_sort |
error analysis of line-of-sight measurement for video satellite |
publisher |
SAGE Publishing |
series |
Advances in Mechanical Engineering |
issn |
1687-8140 |
publishDate |
2017-11-01 |
description |
Compared to ground-based observation, using video satellite to track space objects and determine the orbit has a unique advantage, which can provide strong support for space mission guarantee, object identification, important spacecraft collision warning, and so on. The accuracy of line-of-sight measurement by video satellite directly affects the final positioning accuracy; it is very necessary to analyze and calibrate the line-of-sight measurement error. In this article, a mathematical model of line-of-sight measurement is established using the transformation from image plane to object position. The error sources and the relationship between each other are analyzed comprehensively. The error of line-of-sight measurement caused by the optical axis determination error and the object detection error are calculated, respectively, and their statistical properties are studied. Finally, a concise and practical analytic formula of the error range of line-of-sight measurement is derived. Simulation results verify the theoretical analysis, and the minimum error point of line-of-sight measurement on image plane is researched. It is indicated that the effect of the satellite attitude and the position of the object on image plane are highly coupled to the error range of line-of-sight measurement. |
url |
https://doi.org/10.1177/1687814017742823 |
work_keys_str_mv |
AT xueyangzhang erroranalysisoflineofsightmeasurementforvideosatellite AT junhuaxiang erroranalysisoflineofsightmeasurementforvideosatellite AT yulinzhang erroranalysisoflineofsightmeasurementforvideosatellite |
_version_ |
1724533288124547072 |