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Method for reticon signal processing in the Lower Latitude Meridian Circle (LLMC)
Li BH(李彬华); Yang L(杨磊); Mao W(冒蔚); Tie QX(铁琼仙); Wang XB(王晓彬); Zhang ZS(张周生)
会议录名称PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS SPIE - SIGNAL AND DATA PROCESSING OF SMALL TARGETS 2001
2001
卷号4473
页码502-510
DOI10.1117/12.492802
会议录编者/会议主办者Drummond, OE
产权排序第1完成单位
收录类别CPCI ; EI
会议名称13th Conference on Signal and Data Processing of Small Targets
会议日期2001-07-30
会议地点SAN DIEGO, CA
会议赞助商SPIE
关键词Signal Processing Filtering Centering Reticon Llmc
摘要

The functions and characteristics of the 1(st) to 9(th) Reticon signals used to measure positions of reticle/slit images in the LLMC are described in this paper. According to their characteristics, we present a new method to process these Reticon signals, which consists of a filtering algorithm and a centering algorithm. The filtering algorithm is developed to process the 5(th) to 9(th) Reticon signals, because in these signals there are obvious disturbance components caused by the backaround light in the microscopes. An auto-estimating technique is developed to estimate and eliminate the disturbance signal of the background light by a piecewise-linear fitting. The centering algorithm is used to determine the positions of all the reticle/slit images in 3 steps. The first is to search all the wave crests and troughs of a Reticon signal, the next is to determine a threshold for each wave and then to center the wave by a modified moment method so as to get the position of the reticle/slit image, and the last step is to average all the position data of the waves in a Reticon signal to get an integrate position data of a group of reticles/slits in the corresponding reading microscope, The technique of implementation of the method in C++ programming language is also described in the paper.

资助项目N/A
项目资助者N/A
语种英语
学科领域天文学 ; 天文学其他学科 ; 电子、通信与自动控制技术 ; 计算机科学技术
学科门类理学::天文学 ; 工学 ; 工学::电子科学与技术(可授工学、理学学位) ; 工学::控制科学与工程 ; 工学::计算机科学与技术(可授工学、理学学位)
文章类型Proceedings Paper
出版者SPIE-INT SOC OPTICAL ENGINEERING
出版地1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
ISBN号0-8194-4187-2
ISSN号0277-786X
URL查看原文
WOS记录号WOS:000175830200046
WOS研究方向Computer Science ; Engineering
WOS类目Computer Science, Software Engineering ; Engineering, Electrical & Electronic
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型会议论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6737
专题天体测量技术及应用研究组
通讯作者Li BH(李彬华)
作者单位Yunnan Observatory, Chinese Academy of Sciences, Kunming, China
第一作者单位中国科学院云南天文台
通讯作者单位中国科学院云南天文台
推荐引用方式
GB/T 7714
Li BH,Yang L,Mao W,et al. Method for reticon signal processing in the Lower Latitude Meridian Circle (LLMC)[C]//Drummond, OE. 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA:SPIE-INT SOC OPTICAL ENGINEERING,2001:502-510.
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