Control Platform
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CH | EN
Control Platform
Pointolite Calibration
The radiation calibration and MTF detection of high-resolution optical remote sensing satellites are completed through the reflection of the pointolite array.
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Service Introduction
The pointolite array set in the calibration field area reflects the sunlight to the entrance pupil of the satellite camera, and performs on-orbit radiation calibration and MTF detection on the high-resolution optical remote sensing satellite sensor, and then realizes the radiation performance and image quality evaluation of the remote sensing image of the optical remote sensing satellite.

It can support the measurement of the modulation transfer function of the optical remote sensing satellite sensor; it can support the absolute radiation calibration of the optical remote sensing satellite sensor.
The optical satellite calibration and authenticity inspection subsystem is composed of 20 sets of reflective mobile point light source targets, supporting the MTF measurement of optical satellites in orbit.

With multiple brightness levels, it can support the on-orbit absolute radiation calibration and accuracy verification of optical remote sensing satellites.
Use Flow
Technical Index

Support resolution range of optical remote sensing satellite:    Full color 0.5m to 1m; Multispectral 2m to 4m; With 11-level radiance level;

Equivalent surface reflectance range: 0.2~0.8 surface reflectance; Equipment pointing control accuracy: better than 0.1°; Absolute radiation calibration accuracy: better than 7% (radiance calibration); On-orbit MTF measurement accuracy: better than 10%