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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)
Source PublicationPROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS SPIE - SIGNAL AND DATA PROCESSING OF SMALL TARGETS 2001
2001
Volume4473
Pages502-510
DOI10.1117/12.492802
Author of SourceDrummond, OE
Contribution Rank第1完成单位
Indexed ByEI ; CPCI
Conference Name13th Conference on Signal and Data Processing of Small Targets
Conference Date2001-07-30
Conference PlaceSAN DIEGO, CA
Conference SponsorSPIE
KeywordSignal Processing Filtering Centering Reticon Llmc
Abstract

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.

Funding ProjectN/A
Funding OrganizationN/A
Language英语
Subject Area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
MOST Discipline Catalogue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)
SubtypeProceedings Paper
PublisherSPIE-INT SOC OPTICAL ENGINEERING
Publication Place1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
ISBN0-8194-4187-2
ISSN0277-786X
URL查看原文
WOS IDWOS:000175830200046
WOS Research AreaComputer Science ; Engineering
WOS SubjectComputer Science, Software Engineering ; Engineering, Electrical & Electronic
EI Accession Number2002437155982
EI KeywordsDigital Signal Processing
EI Classification Number716.1information Theory And Signal Processing - 723.1.1computer Programming Languages - 741light, Optics And Optical Devices - 741.3Optical Devices And Systems
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type会议论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6737
Collection天体测量及应用研究组
Corresponding AuthorLi BH(李彬华)
AffiliationYunnan Observatory, Chinese Academy of Sciences, Kunming, China
Recommended Citation
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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