Frequency-controlled array-based RF stealth method and device

A technology of radio frequency stealth and frequency control array, which is applied in the field of radio frequency stealth methods and equipment based on frequency control array, can solve the problems of reducing the susceptibility of radar, and achieve the effect of reducing visibility and reducing the probability of interception

Inactive Publication Date: 2015-11-11
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] in addition, a method of antenna frequency hopping employs irregular scan patterns to reduce receiver susceptibility to radar
Although the probability of being detected in the side lobe region can be reduced by specific beamforming techniques, the high-gain main lobe can still be easily detected

Method used

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  • Frequency-controlled array-based RF stealth method and device
  • Frequency-controlled array-based RF stealth method and device
  • Frequency-controlled array-based RF stealth method and device

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Embodiment Construction

[0043] Exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that the implementations shown and described in the drawings are only exemplary, intended to explain the principle and spirit of the present invention, rather than limit the scope of the present invention.

[0044] figure 1 A flow chart of the method for constructing an audio fingerprint library according to the present invention is shown. understandable, figure 1 The flow diagrams shown are merely schematic, and the steps recited therein may be performed in a different order, performed in parallel, omitted, and / or additional steps may be added. Such as figure 1 As shown, the radio frequency stealth method based on the frequency control array includes: transmitting a carrier signal sequence to the target object, each carrier signal in the carrier signal sequence has a low gain, and each adjacent carrier signal has a speci...

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PUM

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Abstract

The present invention discloses a frequency-controlled array-based RF stealth method, which comprises the steps of sending a carrier signal sequence to a target object, wherein each carrier signal in the carrier signal sequence contains a low gain and a specified frequency difference exists between every two adjacent carrier signals; receiving an echo signal sequence from the target object; and synthesizing a high-gain antenna directional pattern antenna through the beam forming process of the echo signal sequence. The invention also discloses a frequency-controlled array-based RF stealth device. According to the technical scheme of the frequency-controlled array-based RF stealth method and the device, a conventional high-gain antenna directional pattern that covers a to-be-monitored region is replaced by a series of low-gain antenna directional patterns. Since the low-gain antenna directional patterns are low in peak power, the visibility of a radar can be lowered on the premise that the monitoring performance of the radar is kept the same. That is, the low probability of intercept (LPI) performance is improved to be better.

Description

technical field [0001] The invention relates to the technical field of electronic countermeasures, and in particular designs a radio frequency stealth method and equipment based on a frequency control array. Background technique [0002] With the development of modern military science and technology, electronic jamming and anti-jamming related to radar has become one of the focuses of future battlefield competition. In view of the increasingly complex situation of radar application environment, the radar's radio frequency stealth ability has a greater impact. immediate requirement. Under the premise of ensuring the detection capability of the radar, it is necessary to reduce the visibility of the radar and enhance its LPI (Low Probability of Interception) capability to gain the initiative. This is of great significance for improving the radar's anti-reconnaissance capability and self-survivability. [0003] Currently commonly used techniques can be divided into three areas:...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/38
CPCG01S7/36G01S7/2813G01S7/38
Inventor 王文钦孙秀玲邵怀宗陈慧潘晔胡全
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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