探测器和内黑体分离的红外扫描相机在轨非均匀校正方法
By separating the detector and the internal blackbody, and utilizing the non-uniformity correction method that separates laboratory and orbital operations, the problem of non-uniformity in on-orbit images of the internal calibration system was solved, thereby improving the radiation quality of on-orbit images from the infrared camera.
CN115752757BActive Publication Date: 2026-07-17BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
- Filing Date
- 2022-10-28
- Publication Date
- 2026-07-17
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Figure CN115752757B_ABST
Abstract
探测器和内黑体分离的红外扫描相机在轨非均匀校正方法，属于光学遥感技术领域。本发明包括：在实验室定标阶段，进行黑体非均匀分离和系数解算，得到内黑体的非均匀校正系数；在轨星上黑体定标阶段，进行黑体非均匀校正和像元非均匀系数解算，得到在轨非均匀性系数，完成校正。本发明基于实验室内外定标数据分离内黑体和探测器的不一致性，准确获得内黑体不一致性修正系数以及图像非均匀校正系数的方法，为内黑体和探测器综合作用导致的内定标图像非均匀性分离提供解决方法，在轨辐射定标采用黑体、像元分阶段校正处理，可实现内黑体均匀特性稳定的情况下对在轨探测器像元响应相对变化的长期标定和校正，提升在轨图像辐射质量。
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