Experimental Study On Model Of Electromagnetic Jamming From Synthetic False Target With Multiple Antennas

Electronic warfare has become the focus of modern warfare.Electronic countermeasure equipment with superior performance can efficiently and accurately destroy the enemy’s weapons and electronic equipment,so as to suppress the enemy in local wars.With the development of ballistic missile and monopulse radar,electromagnetic interference technology has strategic defensive significance in modern war.This thesis conceives,designs and realizes the establishment,calibration and test of interference experimental model,and verifies the effectiveness and feasibility of multi antenna synthetic false target interference technology in application,which based on the conclusion of numerical analysis of interference model and FEKO electromagnetic simulation results.This thesis first reviews the development of cross eye interference in recent ten years,and then expounds the latest experimental verification of cross eye interference.The second chapter systematically explains the theory of equivalent radiation center of triple antenna and the mathematical mechanism of multi antenna synthetic false target electromagnetic interference technology.This thesis puts forward the experimental goal,strictly studies the interference experimental model according to the experimental goal,and finally constructs the basic framework of the experiment,including the design of hardware devices and experimental test schemes to implement specific functions,which through combining with the theory of multi antenna synthetic false target interference technology.FEKO is used to simulate the electromagnetic field of the experimental model to prove the effectiveness of the experimental model.Subsequently,the general framework of the designed experiment is analyzed and designed in modules.The interference experimental model is divided into interference module,transmission module and reception module.The third chapter describes the part of amplitude and phase control and adjustment of triplet antenna in interference module mainly,determines the index,and designs,processes and tests the devices required in the plate,including power amplifier,power divider,phase shifter,attenuator,switch control board and horn antenna.A device fixing board is designed to fix and assemble all kinds of devices,and then tested and debugged.The regulation accuracy meets the experimental requirements.According to the established experimental physical model,taking the mathematical mechanism of multi antenna synthetic false target interference technology as the theoretical basis,the experimental test is carried out,and the experimental results are obtained through combining with the experimental calibration test scheme.The experimental results are analyzed,and the experimental results are closed-loop with the theory to successfully verify the effectiveness of the interference model.This thesis makes a certain contribution and engineering experience support for the application of multi antenna synthetic false target electromagnetic interference technology.