基于宽带卫星通信的低码率音视频编码系统

Low Bit Rate Audio - Video Coding System Based on Broadband Satellite Communication

世界上数量众多的先进国家均把卫星通信视作救灾抢险、维护社会稳定发展的主要途径重要保障手段以及应急通信途径。因此基于卫星通信的高抗干扰性要求下造成的低通信带宽的特点,本文针对性地设计一种低码率的视频编码系统。该系统采用H265图像压缩编解码标准,使用华为海思公司的HI3516A和ADI公司的ADV7441A搭建硬件平台,在linux系统架构进行软件功能实现。最终实现高清视频信号在1Mbps低传输带宽的传输。

Many advanced countries in the world regard satellite communication as an important means of security and emergency communication for disaster relief and social stability.Therefore,based on the characteristics of low communication bandwidth caused by high anti-jamming requirements of satellite communication,a low bit rate video coding system is designed in this paper.The system adopts H265 image compression codec standard,uses H3516A of Huawei Heise Company and ADV7441A of ADI Company to build hardware platform,and implements software function in Linux system architecture.Finally,high-definition video signals are transmitted at low transmission bandwidth of 1Mbps.