Research On The Property And Technology For Space Synchronization Of Bistatic And Multitatic Radar

Multiple warheads coordinated attack is an effective measure to deal with the complex target environment,the error of space synchronization has a great influence on the target detection performance of bistatic/multistatic missile-borne radars.Based on the bistatic and multistatic radar,the method of space synchronization,the error model,the analysis of the influence,the realization of the systems,the simulation and the calculation are researched in this thesis,thus the study has important value in theoretical and practical application.This paper is based on the missile guidance system of bistatic forward-looking SAR,of which the transmitting and receiving antennas are on motion platforms.Firstly,this paper describes the implementation method and circuit of space synchronization,and the system model which is based on discrete pulse chasing and target location algorithm is developed,then predicts and tracks the target location from the coordinate and motion of platforms by EKF,in order to improve system performance.Secondly,the 3D geometrical configuration of transmitting/receiving platforms and the target is built up and according to this,given of the error of beam pointing of the transmitting,positioning of platforms and target,motion of platform and the error of the system,the complete error model of space synchronization of the bistatic radar,which is based on motion platform are discussed in this paper,by analyzing and calculating.And then the calculation method of the beam coverage,loss of gain and pattern,echo power and SNR come to the conclusion.Finally,through overall analysis,this paper designs the interface and circuit of the simulated program,and realizes the systems of error model and space synchronization.The experimental results verify the feasibility of this algorithm,the error of beam pointing of transmitting and of the positioning of platforms lead to the result that it is necessary to control the number range of the error of beam pointing of transmitting as well as the error of positioning of platforms;as to the engineering practice,this paper provides a real-time synchronization system which is of practical importance.