Development Of Virtual Scene Simulation And Atmospheric Correction Software

With the rapid development of computer technology, the connection between virtual visual simulation technology and people's lives is more and more closely. Virtual simulation technology was used in military and defense firstly, but with the progress and development of virtual visual simulation technology it has had a profound impact. Now it's not only used in military training, combat scene simulation, aerospace technology, also used in the field of industrial product design, forecasting for weather and other disasters. People will use the virtual reality technology to show the reality of the scene does not exist or need to simulate real-world scenarios to predict. The development of virtual visual simulation technology is one of the focus of interactive science and technology in the future.In recent years, the rapid development of quantitative remote sensing technology has been used in many ways, such as analyzing land cover monitoring, analysis of global resources and the environment, climate change monitoring and so on. Because the remote sensing images will be affected in the various components of the atmosphere, and the images can not show the real feature characteristics, atmospheric correction quantitative remote sensing technology has been one of the main difficulties in the study, the study about atmospheric correction gets more and more attention.Contents of this paper are divided into three parts:1. Developing the virtual combat platforms based on Vega Prime. This section introduces the related modules of Vega Prime and the use of Lynx Prime graphical user interface to create ACF file, then introduce architecture software platform. It describes the use of C++ calling related Vega Prime interface to develop application scenario in the VS platform, inheriting the related classes of Vega Prime, rewriting the configuration function and control function in the classes, defining a new member function, then loop through the frame to control the scene.2. Developing the spatial scenarios visualization software based on STKX component. In this chapter we introduce the STK related modules, features and architecture of the visualization software, calculating RCS(Radar Cross Section, referred to as RCS) and HRRP(High Resolution Range Profile) of the target, control charts synchronized display, the four parts. Create a ground station and a sensor in the scene to monitor the space flight goal, control charts and the output of HRRP real-time simultaneously in the scene.3. Developing the software about atmospheric correction based on MODTRAN model. In this chapter we introduce the software PCMod Win which is based on MODTRAN and how to set the required parameters about atmospheric correction, then introduce the overall architecture of atmospheric correction software, specific functions implemented and the correction method. In this paper in order to achieve atmospheric correction MODTRAN atmospheric transport model is used to calculate the reflectivity of remote sensing images.