Research On Strategy Of ECM And ECCM

Radar Jamming Strategy researchmainly depends on the interference weight matrix to implement the calculation and decision.In order to solve the problem that the elements in the matrix cannot be resolved,the analytic form of the disturbance performance evaluation index is deduced according to the basic detection principle of the radar,and the simulation is carried out with the common interference pattern and the typical radar system.The simulation results show that the interference effect evaluation index can be used to optimize the interference or anti-jamming strategy.Firstly,the anti-jamming performance and the mechanism of common jamming patterns are introduced.The evaluation criteria of the interference performance are analyzed by using the evaluation criteria based on the power and the analytical method.SIR and the radar detection probability are taken as the main evaluation indexes.The deceptive jamming is based onJNR,the detection probability and the fraud probability as the evaluationindicators.The influence of the radar signal processing technology on the evaluation index is analyzed under the condition of the radar signal processing mode,the radar system composition,the interference pattern and the mechanism of the radar signal are determined.The source and the process of the power factor in the evaluation index are researched,and a specific confrontation state of the combat effectiveness of the assessment of analytical forms is given.The input parameter of this analytical form are the radar signal,the structure,the processing parameters and the interference parameters,the output is the radar detection probability.Secondly,the interference between five kinds of interference patterns and three typical radar systems are analyzed respectively,and the change of jamming signal and radar signal power ratio in the radar system are analyzed emphatically.Using the change of jamming parameters,the interference performance evaluation index of the analytic form is verified,and the parameter optimization method and the optimal interference strategy range of radar interference are obtained.The influence of range false target and velocity false target on the radar detection under different numbers and densities are simulated.The influence of SIR of each signal processing in the radar system under different interference modes and different parameters are obtained.Finally,the research model of the jamming performance evaluation index of the analytical formand the application of the jamming strategy matrix composed of the analytic index are summarized.Combing the existence of problems and clearing the late research direction.The analytical form of the performance evaluation index of the research is a unified standard performance evaluation index,which solves the problem that the weight coefficient is not analytic and the evaluation criterion is not uniform in the interference strategy matrix.Because of its analytical characteristics,by changing the parameters,it can be used to analyze the interference strategy and as well as be used to analyze the anti-jamming strategy.Therefore,the result of this research is an optimized and anti-countermeasure,which is applicable to the implementation of the radar countermeasure strategy matrix and has a certain practical and feasible value.