A New Method for Fast Star Identification Based on Star Trace

doi:10.3969/j.issn.1000-1093.2018.07.024

Abstract

Abstract: Digital zenith camera is a high-precision astronomical positioning instrument. It takes star images in different orientations by rotating. The stars in each star image are identified by using star catalogue. But the calculated amount is very large and the efficiency of star identification is low. Considering that there are many same stars in the star images, the trace of one star point is deduced, and the region of the same stars is studied. A new star identification method is proposed. In the proposed method, only one star image needs to be identified by using star catalogue. The identified star can be simplified as a new star catalogue, which can be used for the rest star images. Thus the efficiency and speed of the star identification get improved. The experimental result shows that the number of stars identified by the fast star identification method can meet the requirements of positioning, and its positioning accuracy is basically the same as that of star identification method. Key

Key words: digitalzenithcamera, startrace, staridentification, faststarpositioning

CLC Number:

P128.12

LIU Xian-yi, ZHANG Zhi-li, ZHOU Zhao-fa, ZHANG Xi-hui, YANG Shang. A New Method for Fast Star Identification Based on Star Trace[J]. Acta Armamentarii, 2018, 39(7): 1443-1449.

References

［1］郭敏, 张红英. CCD数字摄影在天文定位测量中的应用探讨[J]. 测绘技术装备, 2005, 7(1): 28-29.
GUO Min, ZHANG Hong-ying. The application of CCD in the astronomy orientation[J]. Geomatics Technology and Equipment, 2005, 7(1): 28-29.(in Chinese)
[2］宋来勇. 基于CCD/GPS垂线偏差测量理论算法研究[D]. 青岛: 山东科技大学, 2012.
SONG Lai-yong. Research on theory and algorithm for measuring of vertical deflections based on CCD and GPS[D]. Qingdao：Shandong University of Science and Technology, 2012.（in Chinese）
[3］ Hirt C, Seeber G. Accuracy analysis of vertical deflection data observed with the Hannover digital zenith camera system TZK2-D[J]. Journal of Geodesy, 2008, 82(6): 347-356.
[4］ Halicioglu K, Deniz R, Ozener H.Digital zenith camera system for astro-geodetic applications in Turkey[J]. Journal of Geodesy and Geoinformation, 2012, 1(2): 115-120.
[5］田立丽, 郭金运, 韩延本, 等. 我国的数字化天顶望远镜样机[J]. 科学通报, 2014, 59(12): 1094-1099.
TIAN Li-li, GUO Jin-yun, HAN Yan-ben, et al. Digital zenith telescope prototype of China[J]. Chinese Science Bulletin, 2014, 59(12): 1094-1099.(in Chinese)
[6］翟广卿, 艾贵斌. 数字天顶摄影天文定位测量的工程实现[J]. 测绘科学技术学报, 2014, 31(3):232-235,239.
ZHAI Guang-qing, AI Gui-bin. Digital zenith camera astronomical positioning measurement of project implementatiion[J]. Journal of Geomatics Science and Technology, 2014, 31(3): 232-235,239.(in Chinese)
[7］刘先一, 周召发, 张志利, 等.球面三角形法在数字天顶仪中的应用[J]. 大地测量与地球动力学, 2015, 35(4):726-728.
LIU Xian-yi, ZHOU Zhao-fa, ZHANG Zhi-li, et al. The application of sperical triangle method in digital zenith camera[J]. Journal of Geodesy and Geodynamics, 2015, 35(4):726-728.(in Chinese)
[8］ Hirt C, Beat B, Anna S, et al. Moderen determination of vertical deflection using digital zenith cameras[J]. Surverying Engineering, 2010, 2(1): 1-12.
[9］周召发, 刘先一, 张志利, 等. 基于数字天顶仪的双轴倾角仪研究[J]. 光子学报, 2015, 44(8): 21-26.
ZHOU Zhao-fa, LIU Xian-yi, ZHANG Zhi-li, et al. Research on two-axis tilt sensor based on digital zenith camera[J]. Acta Photonica Sinica, 2015, 44(8): 21-26.(in Chinese)

[10］王博, 田立丽, 王政, 等. 数字化天顶望远镜观测图像及数据处理[J]. 科学通报, 2014, 59(12): 1100-1107.
WANG Bo, TIAN Li-li, WANG Zheng, et al. The image and data processing in digital zenith camera[J]. Chinese Science Bulletin, 2014, 59(12): 1100-1107.(in Chinese)
[11］张春华, 周晓东, 陈维真. 基于背景抑制的星空图像目标运动轨迹提取[J]. 红外与激光工程, 2008, 37(1): 143-146.
ZHANG Chun-hua, ZHOU Xiao-dong, CHEN Wei-zhen. Target trace acquisition method of star images based on background eli- mination[J]. Infrared and Laser Engineering, 2008, 37(1): 143-146. (in Chinese)
[12］陆敬辉, 王宏力, 孙渊, 等. 三角形内切圆的星图识别算法[J]. 红外与激光工程, 2011, 40(4): 752-756.
LU Jing-hui, WANG Hong-li, SUN Yuan, et al. Star pattern identification algorithm by triangle incircle[J]. Infrared and Laser Engineering, 2011, 40(4): 752-756.(in Chinese)
[13］张新帅, 周召发, 黄先祥. 改进的数字天顶仪定位方法[J]. 红外与激光工程, 2015, 44(4): 1254-1259.
ZHANG Xin-shuai, ZHOU Zhao-fa, HUANG Xian-xiang. Improved positioning method for digital zenith camera[J]. Infrared and Laser Engnieering, 2015, 44(4): 1254-1259.(in Chinese)
[14］文香稳, 潘明华, 朱国力. 倾角仪特性研究及其测量误差补偿[J]. 传感器与微系统, 2011, 30(3): 84-86.
WEN Xiang-wen, PAN Ming-hua, ZHU Guo-li. Research on characteristic of the inclinnator and compensation for its easurement error[J]. Transducer and Microsystem Technologies,2011, 30(3): 84-86. (in Chinese)
[15］樊锐, 史磊. 数字倾角仪的非线性补偿及抗干扰技术[J]. 仪表技术与传感器, 2013, 2(5): 36-37,48.
FAN Rui, SHI Lei. Nonlinear error compensation and anti-jiamming technique of digital clinometer[J]. Instrument Technique and Sensor, 2013, 2(5): 36-37,48. (in Chinese)
[16］张志利, 刘先一, 周召发, 等. 转台误差对数字天顶仪轴系误差的影响[J]. 光学精密工程, 2015, 23(11): 3090-3096.
ZHANG Zhi-li, LIU Xian-yi, ZHOU Zhao-fa, et al. Influence of turntable error on axis error in digital zenith camera[J]. Optics and Precision Enigineering, 2015, 23(11): 3090-3096.(in Chinese)

第39卷
第7期2018 年7月兵工学报ACTA
ARMAMENTARIIVol.39No.7Jul.2018