Design And Implement Of Software For Satellite GNC System Ground Testing

Ground test of satellite attitude and orbit control system is an important guarantee for thesuccessfull emission and normal operation. On the basis of the demands of ground test of satelliteattitude and orbit system in a satellite development project, the paper researched on some crucialtechnologies of ground test software development. Software of ground test of satellite attitude andorbit system (SGTAO) was designed and developed, and it was used in the satellite developmentproject. The following is the main work.1. Based on the demands of ground test of satellite attitude and orbit system, the overall goal ofSGTAO was analysised. The modular design method and the method of configuration files setcombined with general model were used with the goal of pritcicability and scalability. The overalldesign pattern and the framework of the system were established, the function modules of the systemwere designed.2. According to each modules of system, several crucial technologies were studied. INI files andExcel files were put forward as the elements of configuration files set. Technologies of storing andreading configuration information were studied. The management method of network connection andthe definition of its configuration files were discussed. General method of databag pre-processing wasput forward, the data structure of standard data packet and interface of DLL were defined. The processof receiving and decoding data packet and its configuration files were discussed. The database wasestablished and its configuration files and the process of saveing and forwarding data were discussed.The control flow of data playback was put forward and its commands and configuration files weredefined. The technology of data statistical analysis and data display were discussed. Classes of datadisplay were designed.3. The development tools and development environment of the SGTAO were discussed. And byrealizing each functional software, such as data pre-procesing software, device driving software,database management software, and data monitoring and display software, the result of research inthis paper was verified.