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A method of anti-infrared surface source decoy jamming based on dual-mode synergy

A technology of decoy jamming and jamming bombs, applied in guidance methods, offensive equipment, weapon accessories, etc., can solve problems such as target guidance, achieve the effects of ensuring continuous stability, resisting infrared surface source interference, and improving detection and recognition accuracy

Active Publication Date: 2022-04-22
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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  • A method of anti-infrared surface source decoy jamming based on dual-mode synergy

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Embodiment Construction

[0025] The present invention will be further elaborated below in conjunction with embodiment.

[0026] 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 an anti-infrared surface source decoy interference method based on dual-mode synergy, which belongs to the technical field of missile guidance and anti-interference; step 1, the infrared system on the missile takes continuous frame pictures of the target; and judges whether the target is to release a jamming bomb according to the photos ; Step 2, resolve the target and all the jamming bombs, as candidate target points; Step 3, judge the candidate target point as a suspected point or determine the interference point; retain the suspected point, remove the definite interference point; Step 4, calculate the confidence of each suspected point value; when exceeding the threshold N, it is judged that the suspected point is the target; Step 5, the radar system is turned off, and the infrared system is used to continue to track the target; the present invention uses the different characteristics of the infrared image signal and the radar distance signal to realize anti-infrared interference , especially for surface source interference purposes.

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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Patent Type & Authority Patents(China)
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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