Efficient Real-time Data Transmission and Processing Technologies Applied to Radio Astronomy

Aiming at problems of massive signals real-time transmission and processing in ultra-wideband and multi-beam receiving systems, we tested and analyzed the related software of the mainstream backend system based on FPGA + GPU. The ultra-wide band receiving equipment required the backend system software to be capable of wider bandwidth and higher time resolution and higher frequency resolution conditions, as well as the realization of real-time data stream transmission and processing. Combined with the future development direction of large aperture radio observation equipment, it was proposed to use high-speed parallel ring buffers to achieve data stream caching, GPU clusters to achieve data stream real-time processing, and distributed parallel data storage based on BeeGFS, modular construction of data stream transmission pipelines software design ideas.