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北京航空航天大学 仪器科学与光电工程学院 精密光机电一体化技术教育部重点实验室2. 北京航空航天大学 精密光机电一体化技术教育部重点实验室
收稿日期:2012-07-11,
修回日期:2012-09-13,
网络出版日期:2013-04-20,
纸质出版日期:2013-04-15
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魏新国 徐佳 张广军. 星敏感器质心定位S曲线误差补偿[J]. 光学精密工程, 2013,21(4): 849-857
WEI Xin-Guo XU Jia ZHANG Guang-jun. S-curve error compensation of centroiding location for star sensors[J]. Editorial Office of Optics and Precision Engineering, 2013,21(4): 849-857
魏新国 徐佳 张广军. 星敏感器质心定位S曲线误差补偿[J]. 光学精密工程, 2013,21(4): 849-857 DOI: 10.3788/OPE.20132104.0849.
WEI Xin-Guo XU Jia ZHANG Guang-jun. S-curve error compensation of centroiding location for star sensors[J]. Editorial Office of Optics and Precision Engineering, 2013,21(4): 849-857 DOI: 10.3788/OPE.20132104.0849.
由于S曲线误差是星敏感器质心定位系统误差的重要组成分,本文结合质心定位的物理过程及仿真对S曲线误差来源进行了分析。 研究了各项误差来源产生的影响,并采用频域分析法得出了S曲线误差的理论解析式。用星敏感器产品进行了实验,采集视场中心S曲线误差并用正弦模型进行补偿,分析了同一补偿模型对全视场S曲线误差的补偿效果,并对标定数据进行了S曲线误差补偿。实验结果表明:视场中心S曲线误差的标准差为0.048 pixel,补偿后标准差为0.027 pixel,质心定位精度提高了43.8%;进一步采用视场中心正弦补偿模型对全视场S曲线误差进行补偿后,全视场质心定位精度提高了35.7%以上,全视场标定精度提高了31.7%。由实验结果可知: S曲线误差是星敏感器的一项重要误差源,采用正弦模型对S曲线误差进行补偿能够取得显著的补偿效果。
As the S-curve errors are important parts of centroid location errors for star sensors
this paper explored the sources of S-curve errors combining with the physical process of centroid location and a simulation. The specific effect of each error source was analyzed and an analytical expression of S-curve errors was calculated by a frequency domain method. The experiments using a star sensor were performed and the S-curve error in the center of the Field of View (FOV) was collected and was compensated using a sine model. The compensation effects on the S-curve errors in the whole FOV were analyzed by the same compensation model and the calibration data were also compensated. Experimental results show that the standard deviation of S-curve error is 0.048 pixels in the center of the FOV
and 0.027 pixels after compensation
therefore the precision of centroid location is improved by 43.8%.Furthermore
after compensating with the same sine model in the center of the FOV for whole field-curve errors
the precision of centroid location in the whole FOV is improved by 35.7% at least and the precision of calibration is improved by 31.7%. It concludes that the S-curve errors are important errors of star sensors and they can be significantly compensated by using the sine model.
LIEBE C C. Star trackers for attitude determination[J]. IEEE Transaction on Aerospace and Electronic Systems, 1995, 6:10-16. [2]LIEBE C C. Accuracy performance of star tracker- a tutorial [J]. IEEE Transaction on Aerospace and Electronic Systems, 2002, 38(2): 587-599. [3]RUFINO G, ACCARDO D. Enhancement of the centroiding algorithm for star tracker measure refinement [J]. Acta Astronautica, 2003, 53: 135-147. [4]李云飞, 李敏杰, 司国良, 等. TDI-CCD图像传感器的噪声分析与处理[J]. 光学 精密工程,2007,15(8):1196-1202. LI Y F, LI M J, SI G L, et al.. Noise analyzing and processing of TDI-CCD image sensor [J]. Opt. Precision Eng ., 2007, 15(8):1196-1202. ( in Chinese) [5]ALEXANDER B F, NG K C. Elimination of systematic error in subpixel accuracy centroid estimation [J]. Optical Engineering, 1991,30(9):1320-1331. [6]YING J J, HE Y Q, ZHOU Z L. Analysis on laser spot locating precision affected by CMOS sensor fill factor in laser warning system [C]. IEEE, ICEMI, 2009: 202-206. [7]杨君,张涛,宋靖雁,等. 星点质心亚像元定位的高精度误差补偿法[J]. 光学 精密工程,2010,18(4):1002-1010. YANG J, ZHANG T, SONG J Y, et al.. High accuracy error compensation algorithm for star image sub pixel subdivision location[J]. Opt. Precision Eng., 2010, 18(4): 1002-1010. (in Chinese) [8]孙瑾秋,周军,张臻,等. 基于能量累加的空间目标星像质心定位[J]. 光学 精密工程,2011,19(12):3043-3048. SUN J Q, ZHOU J, ZHANG ZH, et al.. Centroid location for space targets based on energy accumulation[J]. Opt. Precision Eng., 2011, 19(12): 3043-3048. (in Chinese) [9]李杰. APS星敏感器关键技术的研究[D].北京:中国科学院,2005. LI J. Study the Key Technology of APS Star Tracker [D].Beijing:Graduate University of the Chinese Academy of Sciences, 2005.(in Chinese) [10]贾辉,杨建坤,李修建,等.星敏感器高精度星点提取系统误差分析及补偿方法研究[J]. 中国科学, 2011, 41(1): 69-76. JIA H, YANG J K, LI X J, et al.. Systematic error analysis and compensation for high accuracy star centroid estimation of star tracker [J]. China Tech. Sci., 2011, 41(1): 69-76. (in Chinese)
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