On-orbit calibration device and on-orbit calibration method for pointing precision of remote sensor

Abstract

The invention provides an on-orbit calibration device and on-orbit calibration method for pointing precision of a remote sensor. The device includes a calibration processing module, a filter component, and an imaging component, wherein the filter component is mounted on the imaging component to filter out the light sources outside the range of a calibration source spectrum, and only enable a calibration light source passing through the optical path system of the remote sensor to be calibrated to pass through; the imaging area of the imaging component includes a calibration area and an imagingarea, the calibration area is located at the edge of the imaging area, the surface of the calibration area is installed with the filter component, and the calibration area receives an optical signal of the calibration light source passing through the filter component, converts the optical signal into an electrical signal, and outputs the electrical signal to the calibration processing module; theimaging area receives the optical signal of an observation target, converts the optical signal of the observation target into an electrical signal, and outputs the electrical signal to an external digital transmission subsystem; and the calibration processing module determines the position coordinate of the calibration light source on the imaging component according to the electrical signal of thecalibration light source, and completes the on-orbit calibration of the pointing accuracy of the remote sensor. The on-orbit calibration device and on-orbit calibration method for pointing precisionof the remote sensor have the advantages of compact structure, convenient installation and high reliability.

Description

Technical field [0001] The invention relates to a remote sensor pointing accuracy on-orbit calibration device and method, belonging to the technical field of on-orbit calibration. Background technique [0002] In the existing calibration light source receiving device on the medium and large linear array cameras: at both ends of the focal plane assembly of the camera linear array detector, a heavy kilogram-level area array detector focal plane assembly needs to be separately provided. If the existing calibration light source receiving device is directly applied to the area array micro-nano remote sensor within 30kg, the weight burden of several kilograms will cause the overweight pressure of the micro-nano remote sensor and increase the focal surface volume of the micro-nano remote sensor. Affect the adaptability of the remote sensor platform carried by the micro-nano remote sensor. At the same time, additional area array light source receivers are added at both ends of the linea...

AI Technical Summary

Problems solved by technology

[0004] The technical problem of the present invention is: to overcome the deficiencies of the prior art, to provide a remote sensor pointing accuracy on-orbit calibration device and method, and to solve the problem that the existing medium and large remote sensor calibration light source receiving device cannot be directly applied to micro-nano remote sensors

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