A star simulator target standard source based on micron-scale LED lighting technology

Abstract

The invention provides a star simulator target standard source based on a micron-sized LED light emitting technology, and belongs to the technical field of optical measuring instruments. The star simulator target standard source comprises a box body, a lens cone, a crossed reticle, an attenuation slice, an optical filter, a <mu> LED light source, an electrically-controlled mobile station for positioning the <mu> LED light source, a thermostat and a subtle controllable power source, wherein the lens cone is mounted on the side end surface of the box body; the crossed reticle, the attenuation slice and the optical filter are successively mounted in the lens cone; the electrically-controlled mobile station for positioning the <mu> LED light source, and the subtle controllable power source are mounted on the inner bottom surface of the box body; the <mu> LED light source is mounted on the electrically-controlled mobile station for positioning the <mu> LED light source; the thermostat is mounted on the back of the <mu> LED light source. The star simulator target standard source provided by the invention is simple in the whole construction structure and is convenient to mount; through the adoption of the star simulator target standard source, the simulation of first-magnitude stars to fifth-magnitude stars can be realized, the spacing precision of stars is smaller than or equal to 1+ / _ 1 <mu> m, the star points can be controlled in real time, and the deployment and the maintenance of the device are convenient and rapid.

Description

technical field [0001] The invention belongs to the technical field of optical measuring instruments, in particular to ground detection and calibration of an optical navigation sensor. Background technique [0002] The optical navigation sensor is an important device that provides position and attitude parameters for the aircraft in space. Its accuracy will determine the precise flight of the aircraft. Therefore, it is necessary to accurately detect and calibrate the working parameters of the optical navigation sensor to ensure that the optical The precise operation accuracy of the navigation sensor ensures the flight accuracy and safety of the aircraft. At present, the accuracy of optical navigation sensors is divided into earth sensors, sun sensors and star sensors in order from low to high. [0003] There are two ways to calibrate optical navigation sensors: on-orbit calibration and ground calibration. On-orbit calibration is technically difficult, expensive, and time-co...

AI Technical Summary

Problems solved by technology

At present, there is no report on the target standard source of star simulator based on μLED lighting technology.

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