Research On Jamming Against AESA Integrated RF System

Nowadays, with the development of electronic technology, it is difficult to carry outdetection and suppression on enemy targets effectively or communicate with friend forcesreliably by means of any single electronic equipment or the simple piling up of them.AESA integrated RF system is designed to solve the problem about fusion of radar,electronic warfare equipment as well as communication system and to meet the need ofmodern high-tech war. AESA integrated RF system achieves not only the goals of sharingredundant resources and reducing the costs but also combines radar, electronic warfare andcommunication to make the advantages of their function complementary with each other. Bydoing that comprehensive integrated effectiveness of the system has been greatly improved.Therefore, how to achieve the effective countermeasure of AESA integrated RF system is ofgreat importance.Based on theory and simulation, this paper’s main work is given as follows:Firstly, this paper introduces the composition and function of AESA integrated RFsystem. Then the author looks into a variety of anti-interference technologies whenAESA integrated RF system is implementing radar function and spatial spectrum estimationwhen it is implementing electronic warfare function. Besides, the study analyses the basicand the compound working mode of AESA integrated RF system in order to find the uniqueanti-interference techniques of AESA integrated RF system.Secondly, this paper investigates the limitations of the anti-interference technique ofAESA integrated RF system theoretically. Based on the analysis of the working process ofintegrated RF system, the study is undertaken to put forward the correspondingcountermeasure process. Then the paper introduces two kinds of interferences: Compositesmart noise Jamming and distributed networking jamming. According to the characteristicsof integrated RF system, the paper discusses what kind of composite smart noise jammingshould be chosen and how to use the distributed jamming. Furthermore, variousinterference techniques including jamming adaptive spatial filtering, STAP and spatialspectrum estimation technique are analysed by simulation. In addition,“wolf group on thesea”---an integrated electronic warfare system is proposed in this paper.Finally, this paper evaluates the interference effect from two aspects: being jammedaspect and jamming aspect. For being jammed aspect, the researcher evaluates the effect ofcomposite smart noise jamming by the improvement of SJR in accordance withpower criterion.Distributed networking jamming is proved to be more advantageous in by calculating the size of the sector. For jamming aspect, the researcher evaluates the jammingeffect by the features of radar signals, working mode as well as spatial location.