A remote sensor pointing accuracy on-orbit calibration device and method

A pointing accuracy and calibration device technology, which is applied in the field of on-orbit calibration, can solve the problem that the calibration light source receiving device cannot be directly applied to the micro-nano remote sensor, etc., and achieves the effect of reducing the influence of calibration accuracy, meeting constraints, and reducing the amount of redundant data.

Active Publication Date: 2020-05-12
BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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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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  • A remote sensor pointing accuracy on-orbit calibration device and method
  • A remote sensor pointing accuracy on-orbit calibration device and method
  • A remote sensor pointing accuracy on-orbit calibration device and method

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Embodiment Construction

[0046] Such as figure 1 As shown, the present invention includes a filter component 1 , an imaging component 2 and a calibration processing module 3 .

[0047] The imaging component 2 is implemented by an area array focal plane detector with windowing function, and shares a detector with the remote sensor to be calibrated.

[0048] The filter part 1 filters out the light waves outside the spectral range of the calibrated light source, and only allows the calibrated light source to pass through the optical path system of the remote sensor to be calibrated; Including the mirror frame, pressure ring and optical filter, first put the optical filter into the optical frame, then use the pressure ring to compress the optical filter, and install it on the top of the imaging component 2 through the mounting hole reserved in the optical frame. If a filter film with a filter function is used, it is directly pasted on the photosensitive surface of the detector of the imaging component 2 ...

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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 an on-orbit calibration device and method for the pointing accuracy of a remote sensor, and belongs to the technical field of on-orbit calibration. Background technique [0002] In the calibration light source receiving device on the existing medium and large line array cameras: an area array detector focal plane assembly with a weight of kilograms needs to be independently arranged at both ends of the camera line array detector focal plane assembly. 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 cause the increase of the focal plane volume of the micro-nano remote sensor, directly Affect the adaptability of the remote sensor platform carried by the micro-nano remote sensor. At the same time, additional area array light source recei...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M11/02
CPCG01M11/0221
Inventor 吴俊于艳波朱忠尧李娜康少英杨沐夏中秋赵野张孝弘
Owner BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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