An online evaluation method for the jamming effect of active phased array radar
A phased array radar, jammer technology, applied in radio wave measurement systems, instruments, etc., can solve the problems of inability to achieve online evaluation of jamming effects, and difficulties in online evaluation of jamming effects.
Active Publication Date: 2020-08-25
中国人民解放军32802部队 +1
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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 and the real-time dynamic game, the interfering party cannot directly obtain the information of the interfered party, and can only evaluate the interference effect indirectly based on the information of the interfered party that the interfering party can obtain. Makes it very difficult to evaluate non-cooperative jamming effects online
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[0045] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific 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.
[0046] Set the parameters of a typical phased array radar: transmitter peak power is 1000kW, antenna gain is 38dB, receiver noise temperature is 290K, noise figure is 10dB, system loss is 8dB, wavelength λ is 3cm; target parameter: RCSσ 2m 2 ; The parameters of the jammer 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 to track the target stably. During the dwell period, the radar works at a fixed frequency, and the waveform parameters do not change. After suppressing the interference, the targ...
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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 on the modern battlefield and the continuous improvement of the intelligence level of counter targets, the countermeasures of traditional radar electronic countermeasure systems based on preset jamming strategies will become increasingly inapplicable, 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 carry out interference efficiently and autonomously on the basis of real-time perception of the electromagnetic environment. It has become a research field in the field of ra...
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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