Method and system for detecting inter-satellite angular position error of high-resolution dynamic star simulator

Abstract

The embodiment of the invention discloses a method, a device and a system for detecting an inter-satellite angular position error of a high-resolution dynamic star simulator. A star point display device displays a star point image according to star map data generated by a star map generation processor based on a star catalogue database and the position information, light emitted by the display star point is converged through a star simulator optical lens to form parallel light, and the parallel light is projected into a high-precision theodolite eyepiece located at a rear end of the star simulator optical lens to be imaged; a star point image acquisition device is used for acquiring a crosshair displayed by a high-precision theodolite and a to-be-measured star point image in real time, theobtained information is sent to an inter-satellite angular position error detection processor so as to enable the inter-satellite angular position error detection processor to process the received image and calculate a position difference value of the center point positions of the crosshair and the to-be-measured star point image in the same direction, and lastly, an inter-satellite angular position error value is calculated according to a corresponding high-precision theodolite dial display numerical value when each position difference value is 0. The method is advantaged in that test precision and detection efficiency of the inter-satellite angular position error are effectively improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of space science testing instruments, in particular to a method, device, and system for detecting angular position errors between stars of a high-resolution dynamic star simulator. Background technique [0002] The star sensor is a high-precision space attitude optical sensor, which has important application value in aerospace. As a part of the ground detection equipment of the star sensor, the dynamic star simulator provides the star sensor with star map simulation at any time and in any direction under the inertial coordinate system, and can perform star sensor imaging, star map recognition, star tracking, etc. The functional test provides technical guidance for the development of the star sensor. [0003] When the high-resolution dynamic star simulator is working, according to the optical axis pointing provided by the simulation host, the star map data that the star sensor can observe at the ...

AI Technical Summary

Problems solved by technology

[0004] So far, the detection of inter-star angle position error for high-resolution dynamic star simulators relies on observing star points and crosshairs with the naked eye, and then adjusting the theodolite for alignment. Occasional errors and individual differences lead to low detection accuracy

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