Research on General System of Remote Sensing Satellite Data Preprocessing Based on MPI + CUDA

Abstract

Aiming at the shortcomings of the existing remote sensing satellite data preprocessing system, such as slow speed, weak universality, poor scalability, weak automation and unfriendly interface, a visual and self customized general system for remote sensing satellite data preprocessing process based on MPI + CUDA is designed. Based on MPI + GPU, CUDA technology is used to realize the accelerated processing of various services in two levels in parallel, Greatly improve the system processing efficiency. A three-tier system architecture is adopted to solve the problem of dense coupling of the original system. The business modules of the data layer are implemented based on WCF (Windows communication foundation) to improve the scalability and portability of the system. Automatic preprocessing of satellite data based on WWF (Windows workflow foudation). The visual editing of processing flow is realized through WPF (Windows Presentation Foundation), which provides users with a friendly interactive interface.