Multi-linear-array scanning and area array staring integrated space optical camera

Abstract

The invention discloses a multi-linear-array scanning and area array staring integrated space optical camera, relates to the field of moving target detection, recognition and tracking, and aims to obtain a plurality of detection images in a short time period to perform target detection and enable that target detection and tracking are highly consistent in the space reference. A multi-linear-arrayscanning capture channel comprises a scanning mirror and single-spectrum-band detector groups of at least two spectrum bands; each single-spectrum detector group comprises more than two linear array detectors with parallel linear arrays; the scanning mirror has a certain scanning speed, so that an object space moving target is imaged on the different linear detectors in sequence, and an object space image is obtained; and the obtained object space image is sent to an information processing module. An area array staring tracking channel comprises a two-dimensional pointing mirror and an area array detector, the two-dimensional pointing mirror points to a target position under control of the information processing module, and the area array detector is used for imaging the target position pointed by the two-dimensional pointing mirror. The information processing module acquires the object space image and performs target capturing, identification and tracking.

Description

technical field [0001] The invention relates to the technical field of moving target detection, identification and tracking, in particular to a space optical camera integrating multi-line array scanning and area array staring. Background technique [0002] In recent years, moving target detection and tracking has become a key research issue in aerospace defense. The space-based system has become the main development direction of moving target detection, identification and tracking because of its advantages of "standing high and seeing far". [0003] Due to the particularity of application of space-based systems, the detection of moving targets belongs to the problem of target detection in complex backgrounds. The problem of target detection in a complex background generally requires multiple image correlation processing to reduce application indicators such as detection rate and false alarm rate. [0004] At present, the existing moving target detection systems that can be...

AI Technical Summary

Problems solved by technology

[0004] At present, the existing moving target detection systems that can be applied to space-based systems, such as the US SBIRS early warning satellite, use a single-line detector to obtain a single image in a single scan. If multiple images are to be obtained, the scanning time interval is relatively short Long (usually ≥ 5s), and between two scans, the background changes greatly, which is not conducive to background elimination, making it difficult to detect weak and small targets in complex backgrounds

[0005] Therefore, when the space-based system of single-line detectors is used to detect weak and small targets in complex backgrounds, it cannot meet the application index requirements of target detection problems in complex backgrounds, so it does not have obvious advantages

[0006] In the existing space-based system, the detection task and the tracking task of the moving target are realized through two devices respectively, which cannot realize the consistency of the detection task and the tracking task on the space reference, and has the disadvantages of large volume and high cost.

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