Celestial body capturing method based on dynamic small view field

Abstract

The invention provides a celestial body capturing method based on a dynamic small view field, and the method comprises the steps: driving a photoelectric detection part to rotate to a target celestial body observation position through the star finding and tracking two-stage operation, carrying out the real-time adjustment, and guaranteeing that the target celestial body is still located in a view field observation range when the shooting moment arrives. Celestial body capture of a small-view-field astronomical measurement device under a dynamic condition is realized, uninterrupted observation vector and position feedback input can be provided for rapid and high-precision position or attitude calculation, and tracking type astronomical measurement based on a single-target celestial body and single-servo active star finding under the dynamic condition is realized; the problems that prior information is rapidly updated and celestial bodies are difficult to capture under the dynamic condition are solved.

Description

technical field [0001] The invention belongs to the field of astronomical measurement, in particular to a method for capturing celestial bodies based on a dynamic small field of view. Background technique [0002] Regarding the celestial body capture method of the dynamic small field of view astronomical measuring device, there is no published patent yet. [0003] The small field of view astronomical measurement device usually works on a two-axis servo platform. According to a certain star-seeking strategy, it searches and captures specific celestial bodies all over the sky. By solving the relationship between the target observation vector and the reference vector, it is obtained The position or attitude information of itself in the local horizon reference system provides stable and accurate calibration input for the inertial navigation system under all-day conditions. [0004] Most of the traditional small-field astronomical measurement devices work in a static or quasi-st...

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