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Method for resisting infrared surface source decoy interference based on dual-mode coordination

A technology of decoy jamming and jamming bombs, which is applied in guidance methods, weapon accessories, offensive equipment, etc., can solve problems such as target guidance, achieve accurate judgment and distinction of targets, improve detection and identification accuracy, and resist infrared surface source interference.

Active Publication Date: 2020-05-22
SHANGHAI AEROSPACE CONTROL TECH INST
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Problems solved by technology

At this time, it is difficult to guide the target with a single infrared detection and tracking technology.

Method used

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  • Method for resisting infrared surface source decoy interference based on dual-mode coordination

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Embodiment Construction

[0012] The present invention will be further elaborated below in conjunction with embodiment.

[0013] Aiming at the characteristic of strong shielding of infrared surface source interference, the present invention proposes an anti-infrared surface source interference algorithm based on dual-mode signals, which is characterized in that the infrared image signal and the radar distance signal are used in coordination. The method judges the jamming delivery state based on the infrared image signal, and selects different tracking modes according to the difference of the jamming delivery status. If the characteristics of the energy and target area in the infrared signal change suddenly, the current launch interference will be judged, and the reliability of the tracking based on the infrared signal will decrease, and it will be converted to the tracking based on the radar signal, and the target will be re-detected on the infrared image at the same time. When the target is re-detecte...

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Abstract

The invention relates to a method for resisting infrared surface source decoy interference based on dual-mode coordination, and belongs to the technical field of missile guidance interference resisting. The method comprises the steps that 1, consecutive frame photographing is conducted on a target through an infrared system on a missile, and whether the target launches interference missiles or notis judged according to photos; 2, the target and all the interference missiles are parsed to serve as candidate target points; 3, whether the candidate target points are suspected points or determined interference points is judged, the suspected points are reserved, and the determined interference points are removed; 4, confidence values of all the suspected points are calculated, and when the confidence values exceed a threshold value N, it is judged that the suspected point is the target; and 5, a radar system is shut down, the infrared system is adopted to continue tracking the target. According to the method, the different characteristics of infrared image signals and radar distance signals are coordinately applied, and the purpose of infrared interference resisting, especially surface source interference resisting is achieved.

Description

technical field [0001] The invention belongs to the technical field of missile guidance and anti-interference, and relates to an anti-infrared surface source decoy interference method based on dual-mode cooperation. Background technique [0002] In future wars, precision-guided weapons will play an increasingly important role. The detection and tracking of weak and small infrared targets is one of the core technologies of imaging guidance and early warning systems, and it is also one of the important symbols of the modernization, automation and intelligence of a country's military weapons. Infrared imaging is a passive imaging technology. Compared with radar, it has the advantages of good concealment and high recognition and tracking accuracy. However, infrared guidance is easily affected by infrared jamming bombs, especially infrared surface source interference. Radar detection and guidance is a traditional guidance technology, which belongs to active detection and guidan...

Claims

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Application Information

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IPC IPC(8): F41G3/00
CPCF41G3/00
Inventor 杨俊彦印剑飞王兴钮赛赛曹熙卿
Owner SHANGHAI AEROSPACE CONTROL TECH INST
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