Narrow-view-field star matching method based on error vector matching

An error vector, matching method technique
CN104133993AActive Publication Date: 2014-11-05INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
Publication Date
2014-11-05

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Abstract

The invention provides a narrow-view-field star matching method based on error vector matching. By aiming at the problem of matching difficulty between observed stars and a star catalog since a narrow-view-field optoelectronic device observes few stars in the same moment, a principle that the system error of the optoelectronic device is basically unchanged in a certain time and space range is utilized; recent historical frames of the optoelectronic device are combined; and the error vector accumulation effect is utilized for realizing the star matching of the narrow-view-field optoelectronic device. The narrow-view-field star matching method has the beneficial effects that the narrow-view-field star matching method can be applicable to the narrow-view-field optoelectronic device; the matching correctness is high; the requirements on image extraction and the star catalog are low; the parameter setting is simple; and real-time processing can be realized.
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Description

technical field

[0001] The invention belongs to the field of photoelectric measurement, in particular to a matching method for observing stars and star catalogs in the field of view of photoelectric equipment, in particular to a small field of view star matching method based on error vector matching. Background technique

[0002] In a large number of optoelectronic devices, it is necessary to use stars to calibrate or measure the device itself. For example, astronomical telescopes and photoelectric theodolites can calculate their own system errors by measuring the positions of stars, star sensors can navigate by identifying star maps, astronomical positioning systems can calculate the latitude and longitude of stations by photographing stars, and so on. In these applications, there is a common requirement, which is to know which stars in the known star catalog the stars observed in the field of view are, that is, to establish the corresponding relationship between the observ...

Claims

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