Research On Fidelity Of Visible Scene Simulation System

With the continuous improvement of computer technology,the semi-physical simulation technology has shown good application prospect.Semi-physical simulation technology has many advantages,especially in the field of military,and it can replace the actual battlefield experiment.Visible scene simulation system is an important part of semi-physical simulation,how to apply it to the actual photoelectric detection and imaging guidance experiment is a hot topic for researchers.Only have the high fidelity can Visible scene simulation system be widely used and actually replace the actual battlefield experiment.So how to make fidelity evalation of visible scene simulation system becomes a key problem.In order to evaluate the fidelity of visible scene simulation system,it is necessary to sort out the factors influencing the fidelity of visible scene simulation system and design the experimental scheme of fidelity evaluation.There is no effective evaluation method and mature evaluation system in China.Based on the depth study and research of the visible scene simulation system,and combined with the scientific research project,an evaluation scheme for the fidelity of visible sence simulation system are proposed.The thesis is divided into these parts:Firstly,according to the related literature,the thesis introduces the advantage and development of the hardware-in-the-loop simulation system,the evaluation and research status of fidelity are expounded,based on this,the research framework of fidelity of visible scene simulation system is proposed.Secondly,the structure and working principle of each part of the visible scene simulation system are introduced in detail.Based on the practical project experience and application requirements,the idea of the fidelity evaluation sub-module of the visible scene simulation system is proposed.The factors that need to be evaluated for fidelity of each module and the detailed evaluation methods of each factor are also analyzed.Thirdly,the geometrical model and radiation model was modeled in the work of visible digital scene and optical target simulator,the factors influencing the fidelity of each part are sorted out.In the radiation model transfer experiments add a visible dynamic simulation of digital scene change over time,the dynamic fidelity evaluation for optical digital scene added new experimental comparison data.In the end,The fidelity evaluation experiments of the visible digital scene and the visible light target simulator were respectively carried out.A large number of experimental data were collected by uav,atmospherium,visible light camera,simulation computer and visible light target simulator.All the experimental data are analyzed and simulated.A new visible light digital scene is set up for the joint control test of the visible scene simulation system.Change the system parameters to obtain the the quantitative comparison results of visual scene simulation system.This thesis provides a reference for the fedelity evaluation of visible scene simulation system,and its evaluation method is general and can be applied to the fidelity evaluation of other visible scene simulation system.