Implementation of synchronous and asynchronous high rate multiplexer using advanced orbiting systems

The transmission of audio and video data becomes more and more important in the space data transmission system.Audio and video data need to be transmitted in high isochronous quality and real-time.The speed of video data is high,and the volume is great.Conventional method is to transmit audio and video information in a single channel,but that will waste much resource.Multiplexing audio,video and asynchronous data will improve the utilization ratio of the channel.CCSDS advanced orbiting systems(AOS) report is applied to this kind of task.Two-level multiplexing strategy and virtual channel schedule are suggested to satisfy the isochronous cha-racter of video,audio data transmission and the agility of asynchronous data transmission,and the demo system is designed to prove the blue print to be true.