Based on abundant characteristic of SNE data and the requirement of real time performance during simulation runtime, SNE database was divided into SNE database of SEDRIS standard and running SNE database, and the development process of SNE database was provided. It was analyzed how to utilize SEDRIS kernel technology namely DRM (Data Representation Model), EDCS (Environmental Data Coding Specification), SRM(Spatial Reference Model), API(Application Program Interface) and STF (SEDRIS Transmittal Format) to realize environmental data representation, and achieve standardization of environmental data, and build SNE database. The relative technology was discussed during the process of constituting database based on the SEDRIS standard. Atmosphere database of hiberarchy was built.

The modeling and simulation of Synthetic Natural Environment (SNE) is an important component of distributed complex simulation system, and the modeling and simulation platform of SNE in distributed complex simulation system support environment was put forward, and the development environment and running environment were divided into two parts in this platform. In the development environment, the environmental database was built in terms of SEDRIS (Synthetic Environment Data Representation and Interchange Specification), and the foundation was built for sharing of environmental data. In running environment, the method of environmental federate was adopted, and the abundant characteristic of environmental data was taken into account. Key technologies involved with the modeling and simulation platform of SNE were analyzed and realized, and the detail process of development was provided.

In order to meet the training requirement of a person controlling the Aerial Vehicle on the ground,an Unmanned Aerial Vehicle Simulation Training System based on a new type Aerial Vehicle is constructed and realized.The structure of system and implementing procedures are introduced.In this paper,a wavelet filter method for flight data is provided.The system is composed of command and control,datalink communication,flight control,mission load and displaying.It reproduces the whole actual procedures of a person controlling Aerial Vehicle.For training a controlling person,the Unmanned Aerial Vehicle Simulation Training System makes the period of training shorter and shorter,makes the cost less and less,and is a more advanced training method.The success of system development is very important for improving efficiency of training controlling person and expanding the application of the new type Aerial Vehicle.