Research Of Visual Technology For Radio Frequency Simulation System

Radio Frequency Simulation System(RFSS) can verify and evaluate the guidance radar by simulate the radio frequency environment in microwave darkroom,which can discover and correct the bug in real flight by experimentation.If the experimental datas can be expressed as visualation,it will provide tester a good optical circumstance,make the whole process intuitionistic and realistic, and make for the trueness and reliability of RFSS.The thesis is connected with a certain national defence project,firstly introduce the application in RFSS of several parts of the thesis and ralationship of each other. Expatiate the constitutes and principle of RFSS.According to the practical project,design the display system for RFSS, at the same time exploit the long-distance control software.Aiming at the visualization of the scenes in RFSS,one scene simulation method is studied.It is based on OpenGL and simulates the missile's battle.The thesis designed the frame of the visual simulation system and make use of the visualation of OpenGL sufficiently,such as modeling of missile,fighter, aircraft carrier,using texture mapping and particle system to estabish the special effects of the scene.The continuous animation effects are realized by using timer and double-buffering.The computer simulation indicate the method have advantage of real- time,factuality.The thesis also reaserch the visual calculating of Radar Cross Section(RCS) for complex target.Through the analysis of radar target echo signal reconstruction,we know the significance of RCS.Then the thesis study the Physical Optics(PO), unite with the computer graphics, achieve the visual electromagnetic calculating software.In the part of result,the F-16 fighter and KIVE aircraft carrier are calculated for the frequency-domain and gesture-domain data,and present the detailed analysis about it.Finnaly,as the application of the visual electromagnetic calculating software,the thesis discuss the extended target scattering center model for RFSS,study the parameters evaluate method of scattering center,estimate the one-d and two-d scattering centers by using ESPRIT and Matrix Pencil Method,give the influence of some parameters,and reconstruct the scattering center model of real target with the datas from visual electromagnetic calculating software.