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Infrared and laser compound detection system

A laser and infrared camera technology, applied in the field of space point target detection and positioning, can solve the problem of not being able to obtain accurate distance and speed information of the target, and achieve the effect of enriching detection information

Active Publication Date: 2014-01-08
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, infrared imaging can only obtain the two-dimensional information of the target, and cannot obtain the precise distance and speed information of the target.

Method used

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  • Infrared and laser compound detection system
  • Infrared and laser compound detection system
  • Infrared and laser compound detection system

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Embodiment Construction

[0024] Below in conjunction with accompanying drawing, the specific embodiment of this patent is described in further detail:

[0025] 1. Turn on the whole machine, the rough tracking mechanism 1 starts to scan through the set path, and the infrared camera 8 keeps identifying and finding the target. When the target enters the infrared field of view, the infrared camera 8 finds and locks the target, and the rough tracking mechanism 1 stops scanning. The infrared camera calculates the position of the center of mass of the target and feeds it back to the main control unit. The main control adjusts the rough tracking mechanism 1 to move the position of the target image point to the center of the infrared image, such as figure 2 Show.

[0026] 2. The infrared information of the target and the laser echo signal are returned and focused to the beam-splitting component 5 through the optical telescope 2, and the beam-splitting component reflects the visible light band through the inf...

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Abstract

The invention discloses an infrared and laser compound detection system, which can realize stable tracking on an infrared moving target and accurate pointing on laser, and realize distance measurement on a target. The system is provided with a fold-back type common-caliber optical receiving head part, infrared rays and laser are separated by using a color separation filter, a small movable target is imaged through an infrared camera, coarse tracking of a two-dimensional rotary table and refined adjusting of a quick deflecting mirror are controlled according to a target centroid position, and emitted laser is accurately pointed to the target. A photomultiplier receives a laser echo signal, and target distance information is worked out according to a laser emission principal wave signal and the echo signal. The system can be carried on an onboard platform, a missile-borne platform and a satellite platform, realizes three-dimensional measurement on an infrared target, and provides information assurance for an aggregate decision.

Description

Technical field: [0001] The invention relates to space point target detection and positioning technology, in particular to an infrared laser composite detection system, which can be applied to terminal guidance and space target detection. Background technique: [0002] The traditional large-array infrared focal plane detection of non-cooperative targets has the characteristics of high sensitivity, high two-dimensional spatial resolution and large dynamic range after the two-dimensional turntable is equipped, and can realize autonomous search and tracking of targets in complex environments. And has a strong ability to resist electromagnetic interference. However, infrared imaging can only obtain the two-dimensional information of the target, and cannot obtain the precise distance and speed information of the target. Infrared passive imaging and laser active detection are combined to form infrared / laser dual-mode composite detection, which can obtain the three-dimensional inf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/42G01S17/66G01V8/10
CPCG01S17/14G01S17/42G01S17/66G01S17/89
Inventor 黄庚华颜洪雷舒嵘丁宇星王海伟周德力
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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