Active camouflage protection method and device based on multi-phase segment modulation radar jamming

A radar jamming and phase modulation technology, applied in measurement devices, radio wave reflection/re-radiation, instruments, etc., can solve problems such as inability to use maneuvering targets, limited coverage area, and complicated installation and removal processes
CN106646398BActive Publication Date: 2019-02-22PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
Publication Date
2019-02-22

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Abstract

The invention discloses an active camouflage protection method and device based on multi-phase segment modulation radar interference. By controlling the characteristics of the interference signal, image blocks with controllable quantity, position, area, and brightness are generated in the synthetic aperture radar image to cover the target and surrounding background images to achieve the purpose of camouflage. The method of the present invention is the processing that two-dimensional is done, and the received signal is an equal interval pulse signal, and the maximum length of the segmented signal is shorter than a pulse width of the received signal as a short segment, which is the interference to the distance dimension, and the segmented signal When the minimum length of is longer than one pulse repetition period of the received signal, it is a long segment, which is the interference to the Doppler dimension. The device in the present invention includes a controller and a digital radio frequency memory DRFM, the controller is connected in series with the digital radio frequency memory DRFM, and the controller controls the segmentation mode and the modulation phase value of the radar signal; DRFM is obtained according to the segmentation mode and the modulation phase value 1D and 2D interference signals.
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Description

technical field

[0001] The invention relates to the technical field of target camouflage protection, in particular to an active camouflage protection method and device based on multi-phase segment modulation radar interference. Background technique

[0002] Synthetic aperture radar has the ability to image ground targets all-day and all-weather, and realize target recognition through the fine two-dimensional structure information of the target.

[0003] Target concealment and camouflage methods are generally divided into two categories: internal and external. The "intrinsic" concealment and camouflage measures are stealth technology. By reducing the exposure characteristics of the target, for the radar band, the shape structure design is mainly used to avoid the mirror reflection and corner reflection effects, and the wave-absorbing material is used to weaken the radar wave scattering. Stealth technology alone reduces the target Exposing features is difficult and costly, an...

Claims

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