Realization of simulated star map with noise
-
摘要: 本文对星敏感器的姿态参数进行仿真计算，实现了观测星的提取及星图模拟。根据二维高斯分布模型对星点进行灰度弥散；考虑了噪声等因素的影响，实时模拟星敏感器在轨状态下拍摄星空的真实星图。实验证明，通过仿真模拟在轨运行卫星所拍摄的星图，可以为星敏感器星点提取、星图识别、姿态解算等功能算法提供验证。Abstract: In this paper, through calculation of the attitude parameters of star tracker, the observed star extraction and star map simulation were realized. The image point was taken gray diffusion according to the 2D Gaussian distribution model. Considering the influences of noise, the real sky star map taken by star tracker on orbit was simulated in real time. Experiments show that the star map obtained through simulation of the real one taken by satellite on orbit could provide confirmation for algorithm of star point extraction, star map recognition and attitude solution of the star sensor.
-
[1] KLAUS A,BAUER J,KARNER K,et al.. Camera calibration from a single night sky image[C]. The 2004 IEEE Computer Society Conference on Computer Vision and Pattern Recognition,Washington DC,United states,27 June-2 July,2004.
[2] 田宏,袁家虎,李展,等. 星敏感器在地面观星实验的结果分析[J]. 光电工程,2001,28(5):1-4. TIAN H,YUAN J H,LI ZH,et al.. Analysis for the ground observing data of star sensor[J]. Optic-Electronic Engineering,2001,28(5):1-4.(in Chinese)
[3] LIU Y P,LI J,ZHANG H. Designand calibration of star simulator[J]. Infrared and Laser Engineering,2006,35(Supplement):331-334.(in Chinese)
[4] 胡宜宁,巩岩. 动态星图显示算法的设计与实现[J]. 宇航学报,2008,29(3):849-853. HU Y N,GONG Y. Design and realization of a dynamic display algorithm for star map[J]. J. Astronautics,2008,29(3):849-853.(in Chinese)
[5] 徐亮,赵建科,周艳,等. 弱光紫外星模拟器的研制[J]. 中国光学,2011,4(4):369-373. XU L,ZHAO J K,ZHOU Y,et al.. Development of dim light ultraviolet star simulator[J]. Chinese Optics,2011,4(4):369-373.(in Chinese)
[6] 饶才杰,房建成. 一种星图模拟中观测星提取的方法[J]. 光学精密工程,2004,12(2):129-135. YAO C J,FANG J CH. A way of extracting observed stars for star image simulation[J]. Opt. Precision Eng.,2004,12(2):129-135.(in Chinese)
[7] 廖瑛,刘光明,文援兰. 卫星星敏感器视场建模与仿真研究[J]. 系统仿真学报,2006,18(2):38-44. LIAO Y,LIU G M,WEN Y L. Research on modeling and simulation for view field of star sensor[J],2006,18(2):38-44.(in Chinese)
[8] COHEN M,DAVID J P. Radiation-induced dark current in CMOS active pixel sensors[J]. IEEE,2000,47(6):2485-2491.
[9] 魏新国,张广军,樊巧云,等. 利用仿真星图的星敏感器地面功能测试方法[J]. 红外与激光工程,2008,37(6):1087-1091. WEI X G,ZHANG G J,FAN Q Y,et al. Ground function test method of star sensor using simulated sky image[J]. Infrared and Laser Engineering,2008,37(6):1087-1091.(in Chinese)
[10] 郭敬明,魏仲慧,何欣,等. CCD星图模拟器的设计及验证[J]. 中国光学与应用光学,2010,3(5):486-493. GUO J M,WEI ZH H,HE X,et al.. Design of CCD star map simulator and its validation[J]. Chinese J. Opt. Appl. Opt.,2010,3(5):486-493.(in Chinese)
[11] 董瑛,邢飞,尤政. 基于CMOS APS的星敏感器光学系统参数确定[J]. 宇航学报,2004,25(6):663-668 DONG Y,XING F,YOU ZH. Determination of the optical system parameters for a CMOS APS based star sensor[J]. J Austronautics,2004,25(6):663-668.(in Chinese)
[12] 王海涌,费峥红,王新龙. 基于高斯分布的星像点精确模拟及质心计算[J]. 光学精密工程,2009,17(7):1672-1677. WANG H Y,FEI ZH H,WANG X L. Precise simulation of star spots and centroid calculation based on Gaussian distribution[J]. Opt. Precision Eng.,2009,17(7):1672-1677.(in Chinese)
[13] 王海涌,周文睿,林浩宇,等. 静态像点高斯灰度扩散模型参数估计方法[J]. 光学学报,2012,32(3):0323004. WANG H Y,ZHOU W R,LIN H Y,et al.. Parameter estimation of gaussian gray diffusion model of static image spot[J]. Acta Optical Sigica,2012,32(3):0323004.(in Chinese)
[14] HANCOCK B,STIRBL R,CUNNINGHAM T,et al.. CMOS active pixel sensor specific performance effects on star tracker/imager position accuracy[J]. SPIE,2001,4284:43-53.
[15] COHEN M,DAVID J P. Radiation-induced dark current in CMOS active pixel sensors[J]. IEEE,2000,47(6):2485-2491. -
计量
- 文章访问数: 1859
- HTML全文浏览量: 422
- PDF下载量: 647
- 被引次数: 0
下载:
