| In recent years,weaponry,especially aircrafts,is under serious threats with the widespread use of directed-energy weapons in military affairs,such as electromagnetic pulses weapons and high-power microwaves weapons.Therefore,it is essential to research on the effect of electromagnetic pulses on airborne equipment and further research on electromagnetic pulses protection.This dissertation,based on the urgent requirement for electromagnetic pulses protection of airborne equipment,firstly made an analysis of the generation mechanism of electromagnetic pulses and the electromagnetic environment characteristics of electromagnetic pulses,and then established a typical radio frequency receiver model and a coupling way of the typical radio frequency receiver through analyzing the coupling way of the airborne equipment under electromagnetic pulses with a case study of a typical radio frequency receiver.Besides,a coupling model of airborne equipment was established according to the coupling method of typical equipment.Finally,this dissertation concluded the spectrum characteristics of electromagnetic pulses,the law of the coupling of the electromagnetic pulses influenced by the size of the seam and the slot gap and the coupling law of the cables by carrying out the coupling simulation of antennas,cables and apertures under the action of electromagnetic pulses with the method of numerical simulation and analysis.On this basis,this dissertation discussed several common electromagnetic pulses protection methods,such as shielding,filtering,and grounding.Aiming at the coupling way of electromagnetic pulse of airborne equipment,several effective protection methods that can be implemented in engineering were proposed,and the protection performance was verified by simulation.In summary,this dissertation researched on the electromagnetic pulses protection technology of airborne equipment,providing a reference for the development of electromagnetic pulses protection technology for airborne equipment. |
PDF Full Text Request