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Radar interference method based on digital coding metasurface fast phase regulation

A digital coding and radar jamming technology, applied in the field of radar jamming, can solve the problems of insufficient jamming flexibility and strong dependence on electronic reconnaissance and guidance, and achieve the effects of easy control and implementation, compensation for lack of flexibility, and low cost

Inactive Publication Date: 2020-07-10
湖南赛博诺格电子科技有限公司
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  • Application Information

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Problems solved by technology

The present invention avoids the problem that the current active interference emits high-power electromagnetic waves, causing the jammer to become a beacon and has a strong dependence on electronic investigation and guidance, and makes up for the shortcomings of the existing passive interference as the target in vitro interference, such as the lack of flexibility

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  • Radar interference method based on digital coding metasurface fast phase regulation
  • Radar interference method based on digital coding metasurface fast phase regulation
  • Radar interference method based on digital coding metasurface fast phase regulation

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Embodiment Construction

[0030] In order to make the technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0031] In this embodiment, the experimental process of the metasurface fast phase control against the actual radar is taken as an example for illustration. The basic parameters of the radar signal to be jammed: the radar to be jammed is in the X-band, and transmits a linear frequency modulation signal with a pulse width of 6us, a repetition frequency period of 200us, and a signal bandwidth of 200MHz.

[0032] For the above-mentioned radar signal to be interfered, the anti-jamming method of this embodiment includes the following specific steps, the specific process is as follows: figure 1 shown.

[0033]...

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Abstract

The invention provides a radar interference method based on digital coding metasurface fast phase regulation. The method comprises the following steps: a digital coding metasurface is designed and prepared, and the digital coding metasurface is installed on the surface of a protection target strong scattering center; and the phase of a radar echo signal is randomly and rapidly modulated by using adigital coding metasurface, and the radar echo signal subjected to the random and rapid modulation of the phase of the digital coding metasurface enters a radar receiver, so that effective interference on radar detection is realized. Starting from a radar signal processing link, damage of the rapid regulation and control capability of the digital coding metamaterial on electromagnetic waves on radar signal processing is ingeniously utilized, and a new thought is provided for novel smart radar interference.

Description

technical field [0001] The invention belongs to the technical field of radar interference, and in particular relates to a method for rapidly modulating the phase of radar echoes, disrupting the phase information of radar echoes and realizing interference. Background technique [0002] Radar is a sensor that can acquire long-distance target information autonomously, all-weather, and all-weather, and is an indispensable means of detection in modern military development. With the continuous improvement of modern radar detection capabilities, the threat to the survival of high-value military targets on the battlefield is increasing day by day. The development of radar jamming technology has great military significance and practical prospects. [0003] Modern radar jamming is mainly divided into two categories: active jamming and passive jamming. Active jamming usually uses high-power electromagnetic waves or generates false targets based on digital radio frequency store-and-for...

Claims

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Application Information

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IPC IPC(8): G01S7/38
CPCG01S7/38
Inventor 胥文泉邱兆坤教亚飞刘伟林孙伟柴进李明
Owner 湖南赛博诺格电子科技有限公司
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