A compound splicing method of super large area array of infrared detector

Abstract

A large area array infrared detector composite splicing method can realize a large field of view seamless coverage effect; the method is based on small scale area array units; when two detectors have adjacent corners, one pixel is overlapped on the chessboard line transverse line direction; another group is arranged according to chessboard grid black grid arrangement, when two detectors have adjacent corners, one pixel is overlapped on the chessboard line vertical line direction, thus finally forming two complementary overlapping detector assemblies; the method also comprises the following steps: using an optical splicing method and a light splitting prism to divide two optical paths, and placing the two detector assemblies on the conjugate image surface of the two optical paths, thus collecting images in the same field of view; finally carrying out data processing for the two images, and realizing mutual complementation. The method can basically eliminate an imaging blind zone caused by a conventional splicing mode, thus directly reducing the non coverage rate to the technology limited level; the method is high in coverage rate, and can satisfy large field of view, high resolution and seamless splicing application demands of the large area array infrared detectors.

Description

technical field [0001] The invention belongs to the technical field of spaceflight optical remote sensing, and relates to an infrared detector super-large area array splicing method applied to staring early warning in a large field of view. Background technique [0002] At present, the military threats facing our country are becoming more and more complex and severe. In the capacity building of space-based early warning systems, the new generation of high-orbit early warning systems must realize the ballistic trajectory of new types of space and space threats, weaker radiation characteristics / shorter radiation time / more complex motion characteristics. For the detection and early warning of missile targets and high-density targets, innovations must be made in the early warning system. [0003] In the technical development route of its high-orbit missile early warning payload, the United States has clearly carried out pre-research on the large area array staring early warning ...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to meet the requirements of high frame rate and zero missing alarm under high orbit and large field of view staring early warning application, realize super large area array detector splicing, and solve the problem of high non-coverage rate under the traditional splicing method

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