Online evaluation method for interference effect of active phased array radar

A technology of phased array radar and jammer, applied to radio wave measurement systems, instruments, etc., can solve problems such as difficulties in online evaluation of interference effects, and inability to achieve online evaluation of interference effects

Active Publication Date: 2020-05-15
中国人民解放军32802部队 +1
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Problems solved by technology

These methods are all evaluated from the perspective of the interfered party, which is based on the offline evaluation of the cooperation method, and it is impossible for the interferer to directly evaluate the interference effect online
In the actual combat environment, due to the non-cooperative relationship between the opposing parties

Method used

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  • Online evaluation method for interference effect of active phased array radar
  • Online evaluation method for interference effect of active phased array radar
  • Online evaluation method for interference effect of active phased array radar

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Embodiment Construction

[0045] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0046] Set the parameters of a typical phased array radar: the peak power of the transmitter is 1000kW, the antenna gain is 38dB, the noise temperature of the receiver is 290K, the noise coefficient is 10dB, the system loss is 8dB, and the wavelength λ is 3cm; target parameters: RCSσ for 2m 2 ; The jammer parameters carried: the peak power is 10W, the antenna gain is 10dB, the loss is 3dB, the bandwidth is 5MHz, and the jamming signal type is suppression jamming.

[0047] Before suppressing interference, the radar revisits the target at a fixed period and tracks the target stably. During the dwell period, the radar works at a fixed frequency and the waveform parameters do not cha...

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Abstract

The invention provides an online evaluation method for the interference effect of an active phased array radar, and the method comprises the steps: firstly building an index system for the evaluationof the interference effect, and obtaining the weight of each layer of index corresponding to the previous layer through employing an analytic hierarchy process; secondly, an interference party comprehensively uses multi-source information such as priori intelligence knowledge, an online reconnaissance result and a real-time auxiliary situation to quantitatively calculate radar threat degree variation under an interference condition from three aspects of state multi-domain perception, priori mode matching and radar index inversion; and finally, the interference party synthesizes calculation results of the three aspects to obtain a total interference effect evaluation value. Qualitative and quantitative evaluation can be carried out on a typical combat scene, detailed steps of interference effect online evaluation are defined, the method is more sensitive to changes of radar threats, the evaluation result is high in credibility, good online realizability is achieved, a basis is providedfor subsequent interference patterns and interference parameter self-adaptive decisions, and an interference machine can occupy an active position in the confrontation process.

Description

technical field [0001] The invention relates to the technical field of radar electronic countermeasures, in particular to an online evaluation method for the interference effect of an active phased array radar. Background technique [0002] With the increasing complexity of the electromagnetic countermeasure environment in modern battlefields and the continuous improvement of the intelligence level of countermeasures, the countermeasures of traditional radar electronic countermeasures systems based on preset jamming strategies will become less and less applicable, and adaptive countermeasures need to be explored. Cognitive electronic warfare technology intends to introduce cognitive theory and artificial intelligence technology into the countermeasure system, so that the system can respond quickly and efficiently and autonomously implement interference on the basis of real-time perception of the electromagnetic environment. It has become a research in the field of radar elect...

Claims

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Application Information

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IPC IPC(8): G01S7/38G01S7/36G01S7/40
CPCG01S7/36G01S7/38G01S7/40
Inventor 杨健王沙飞李云杰肖德政田震覃颖
Owner 中国人民解放军32802部队
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