Development Of Virtual Test System Of Laser Guided Missile Based On The Information Architecture

Virtual test is the most important test way of modern test system. Compared with the traditional test system, the virtual test system takes advantages of low cost, short test period and so on. Laser guided missile is an important guided weapon. Atmospheric environment has a great influence in laser transmission, so laser guided missile is very sensitive to the atmosphere. By studying the transmission effect of laser under different weather, build ing a virtual test system of laser guided missile which can meet a variety of weather conditions, has great significance on analyzing the operational capability of laser guided missile.First, the thesis studies the laser transmission model in the atmosphere. The atmospheric transmission medium is divided into two parts: the middle and low scattering medium, high scattering medium. The rain is a typically middle and low scattering medium, and the fog is a typically high scattering medium. The shine uses the common model. In the middle and low scattering medium, based on Mie theory, the thesis has established the transmission effect model which ignores higher-order laser scattering energy. In the high scattering medium, in parallel flat model on the basis of the hypothesis that the photon transmits in accordance with Gaussian distribution, the thesis has established the laser transmission effect model in the high scattering medium. For two kinds of model, by comparing with standard MC(Monte Carlo) method, the thesis verifies accuracy and real-time performance of the model.Based on the laser transmission effect model, the thesis analyses the demands of the virtual test system in function, and analyses the effect of laser transmission module, laser module, virtual tank module and laser guided missile module in the role of the virtual system. By using the method of object-oriented design, the thesis has designed the virtual test system. And the thesis analyses the relationship between the interface interaction of the modules, completed the relationship of order and release between the modules. With the method of software design, the thesis has completed the software design of the four modules in the system.Finally, the thesis has test four modules in the system, and built the virtual test system on the HIT-TENA virtual experimental platform. Under the environment of different wind speed and sunshine, rain, fog, the thesis has test the guidance oflaser guided missile in flight. Test results show that the system run reliably and can meet the needs of virtual test.