Next Article in Journal
A Wireless and Batteryless Microsystem with Implantable Grid Electrode/3-Dimensional Probe Array for ECoG and Extracellular Neural Recording in Rats
Next Article in Special Issue
Remote Interrogation of WDM Fiber-Optic Intensity Sensors Deploying Delay Lines in the Virtual Domain
Previous Article in Journal
Molecular Electric Transducers as Motion Sensors: A Review
Previous Article in Special Issue
Fabrication Quality Analysis of a Fiber Optic Refractive Index Sensor Created by CO2 Laser Machining
Sensors 2013, 13(4), 4598-4623; doi:10.3390/s130404598
Article

Optical System Error Analysis and Calibration Method of High-Accuracy Star Trackers

1,2
, 1,2,*  and 1,2
1 Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, China 2 State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084, China
* Author to whom correspondence should be addressed.
Received: 29 December 2012 / Revised: 27 March 2013 / Accepted: 3 April 2013 / Published: 8 April 2013
(This article belongs to the Special Issue Optomechatronics)

Abstract

The star tracker is a high-accuracy attitude measurement device widely used in spacecraft. Its performance depends largely on the precision of the optical system parameters. Therefore, the analysis of the optical system parameter errors and a precise calibration model are crucial to the accuracy of the star tracker. Research in this field is relatively lacking a systematic and universal analysis up to now. This paper proposes in detail an approach for the synthetic error analysis of the star tracker, without the complicated theoretical derivation. This approach can determine the error propagation relationship of the star tracker, and can build intuitively and systematically an error model. The analysis results can be used as a foundation and a guide for the optical design, calibration, and compensation of the star tracker. A calibration experiment is designed and conducted. Excellent calibration results are achieved based on the calibration model. To summarize, the error analysis approach and the calibration method are proved to be adequate and precise, and could provide an important guarantee for the design, manufacture, and measurement of high-accuracy star trackers.
Keywords: star tracker; error analysis; calibration; parameter estimation star tracker; error analysis; calibration; parameter estimation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Share & Cite This Article

Export to BibTeX |
EndNote


MDPI and ACS Style

Sun, T.; Xing, F.; You, Z. Optical System Error Analysis and Calibration Method of High-Accuracy Star Trackers. Sensors 2013, 13, 4598-4623.

View more citation formats

Related Articles

Article Metrics

Comments

Citing Articles

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert