Collaborative Anti-jamming Research And Simulation System Design And Implementation Based On Data Fusion

In the face of increasingly complex electromagnetic interference environment,it is more and more difficult for single radar to resist interference.The cooperative anti-interference ability of networked radar can improve the comprehensive anti-interference ability of the whole system,and it is also the main style of system confrontation in the future.Cooperative detection and cooperative confrontation have become the research hotspot in the field of radar at present.Aiming at this background requirement,this paper focuses on the design and implementation of collaborative anti-jamming technology based on data fusion and simulation platform based on Unity3D、RTX and reflected memory technology.The main work and innovations of this paper are as follows:1.completed the mathematical modeling of radar echo signal.Aiming at the commonly used linear frequency modulation pulse irradiation signal,the fuzzy graph of the signal is analyzed and calculated,and the software modeling of radar detection target and speed measurement and ranging process is completed.2.completed the mathematical modeling and simulation analysis of common electronic interference and clutter signals.3.the preprocessing of the cooperative information fusion algorithm of networked radar,the spatiotemporal registration of the data level fusion algorithm is completed,and the performance of the extended Kalman filter and the insensitive Kalman filter algorithm is compared.4.a network radar cooperative anti-jamming simulation platform based on reflective memory technology and RTX technology is established.The overall architecture of the simulation platform is proposed.The key technologies such as real-time communication between nodes,real-time communication between processes,real-time signal processing,real-time animation of 3D scene are designed and implemented for multi-computer collaborative simulation.The design,programming,debugging and testing of the simulation platform are completed.The real-time process of attack and defense confrontation of two radars,one jammer and one aircraft is realized on the simulation platform.5.a cooperative anti-jamming fusion algorithm is proposed to combat distance spoofing interference and distance speed combined spoofing interference.The simulation results verify the effectiveness of the algorithm.Finally,on the developed collaborative anti-jamming simulation platform,the fusion algorithm of missile-borne radar and fixed radar is verified,and the simulation results verify the effectiveness of the algorithm.