Range-angle Joint Deception Jamming Method For Radar Tracking Confrontation

With the continuous development of information technology,radar electronic countermeasures technology plays an increasingly prominent role in information warfare.As an effective means of jamming radar tracking,deception jamming technology has been a research hotspot.In the context of the development of radar detection technology to multidimensional and intelligent,the performance of deception jamming from a distance or angle is seriously challenged.In order to improve the jamming performance and meet the requirements of different jamming effects,this thesis investigates the range-angle joint deception jamming method for radar tracking countermeasures,organically combines the range gate pull off jamming and angle deception jamming to form a joint deception jamming method,and explores appropriate jamming strategies to improve the jamming effects.The specific contents are as follows:1.Aiming at the problems of single deception dimension and unsatisfactory jamming effect of range gate pull off jamming,a range-angle joint deception jamming method is studied.By analyzing the mechanism of range deception and angle deception,a rangeangle joint deception jamming model is established,which forms a range and angle controllable false target generation method,expands the space variable area of false targets,improves the flexibility of false targets and contributes to the improvement of jamming performance.2.In response to the problem of poor jamming effect due to fixed pull off jamming strategy,an optimization method for single and multiple false target range-angle joint deception jamming strategy based on particle swarm optimization algorithm is studied under single performance index by analyzing the radar tracking and jamming process.The obtained strategy can effectively counter radar tracking and improve jamming effect,and is significantly superior to uniform speed pull off jamming.3.Aiming at the problem that jamming strategies are difficult to weigh the interference effect under different performance indexes,the mutual restraint relationship between different performance indexes is analyzed,and a range-angle joint deception jamming optimization model under multiple performance indexes is established.The jamming strategy optimization methods based on traditional multi-objective optimization method and evolutionary algorithm are studied,and the single-point solution and multipoint solution set are obtained respectively,which can effectively meet the requirements of different jamming effects.The above methods have been verified by simulation experiments.The results show that the above methods can generate multiple jamming patterns and meet different jamming performance requirements of radar.