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Search and tracking imaging method, device and system

A tracking imaging and real-time tracking technology, applied in the field of optical detection, can solve the problems of insignificant radar detection effect, insignificant Doppler effect, and large blind spot of ground and air detection, so as to improve all-weather adaptability and strong penetration ability. , the effect of large field of view

Active Publication Date: 2019-04-09
北京国泰蓝盾科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to its small size, simple operation, low flight altitude, and many ground occlusions, there is currently no effective observation method for it in the short-range range.
[0003] Due to the characteristics of miniaturization, stealth, low-altitude and short-range of low-slow and small targets, the Doppler effect caused by them is not obvious, and the detection effect of traditional radar is not obvious. Confusion with meteorological interference, clutter interference or flocks of birds and other shortcomings, there are problems such as high false alarm rate, so the short-range surveillance and reconnaissance system used for the protection of important places has become a key technology that countries have vigorously developed in recent years

Method used

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  • Search and tracking imaging method, device and system

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Experimental program
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no. 1 example

[0031] Please refer to figure 2 , the present embodiment provides a search and track imaging method, the method comprising:

[0032] Step S200: Acquiring real-time infrared image data of targets searched in the set airspace;

[0033] In this embodiment, the set airspace may be an effective detection range of an infrared imaging system used to search for suspicious targets. When searching for a target, the two-dimensional photoelectric tracking turntable equipped with an infrared imaging system and a laser imaging system rotates back and forth to conduct a cruise scan search in the set airspace, and the infrared imaging system searches for suspicious targets. The target is imaged to generate real-time infrared image data of the target.

[0034] Step S210: Based on the real-time infrared image data, control the turntable to track and align the target in real time;

[0035] In this embodiment, after the infrared imaging system finds the target, it can control the rotation of th...

no. 2 example

[0064] Please refer to Figure 7 , this embodiment provides a search and tracking imaging device 700, which includes:

[0065] Infrared module 710, used to obtain the real-time infrared image data of the target searched in the set airspace;

[0066] A tracking module 720, configured to control the turntable to track and align the target in real time based on the real-time infrared image data;

[0067] The laser range gating module 730 is configured to perform laser range gating imaging on the target to obtain a clear image of the target.

[0068] Please refer to Figure 8 , in this embodiment, further, the tracking module 720 may also include the following units:

[0069] A calculation unit 721, configured to calculate the miss amount of the target based on the real-time infrared image data;

[0070] The alignment unit 722 is configured to control the turntable to perform real-time tracking and alignment on the target based on the miss amount of the target.

[0071] Pleas...

no. 3 example

[0080] Please refer to Figure 11 , this embodiment provides a search and track imaging system 800, which includes a two-dimensional turntable 810, a visible light imaging system 820, a laser range-gated imaging system 830, an infrared imaging system 840, a laser ranging system 850, a turntable control system 860, and Image real-time processing tracking system 870.

[0081] In this embodiment, the infrared imaging system 840 is used to search, discover, and track suspicious targets in a large field of view, and acquire infrared image data of targets; the real-time image processing and tracking system 870 is used to process the infrared image data in real time , calculate the miss amount of the target, and transmit the miss amount to the turntable control system 860, so that the target is imaged in the center of the field of view, and the turntable control system 860 is used to control the two-dimensional turntable 810 Track the target in real time according to the amount of m...

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Abstract

The invention provides a searching and tracking imaging method, device and system, which relate to the field of optical detection. The searching and tracking imaging method includes the following steps: acquiring real-time infrared image data of a target searched in a set airspace; making a turntable track and align the target in real time based on the real-time infrared image data; and carrying out laser range gated imaging on the target to obtain a clear image of the target. The invention presents a searching and tracking imaging system combining infrared and laser range gated imaging. By adopting an infrared / laser range gated and visible light multispectral imaging mode, the influence of rain, snow, fog and other unfavorable natural conditions on light wave scattering can be overcome, and the problem that it is difficult to observe and track a short-range, low-altitude and slow small air target can be solved.

Description

technical field [0001] The present invention relates to the field of optical detection, in particular to a search and track imaging method, device and system. Background technique [0002] Low-slow and small target is the abbreviation of low-altitude, slow-speed, and small-scale aerial targets, usually referring to altitudes below 1000m, flight speeds below 200km / h (55m / s), and radar reflection cross-sections less than 2m 2 small aviation aircraft. Due to its small size, simple operation, low flight altitude, and many ground occlusions, there is currently no effective observation method for it in the short-range range. [0003] Due to the characteristics of miniaturization, stealth, low-altitude and short-range of low-slow and small targets, the Doppler effect caused by them is not obvious, and the detection effect of traditional radar is not obvious. It has disadvantages such as weather interference, clutter interference or bird flock confusion, and there are problems suc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S17/89
CPCG01S17/89
Inventor 张振宇杨天博刘振华刁利张艳茹王皓高顺吴立群曾荐轩王升广尹东风王光明王晓琴
Owner 北京国泰蓝盾科技有限公司