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在信道带宽受限的条件下 ,实现大容量信息的实时传输是面向空间应用的遥科学技术要解决的核心问题之一。提出了将双总线寻址与双 Buffer相结合的技术结构 ,从而实现了在规定的传输协议、规定的信道链路带宽的约束条件下 ,视频图像的实时无缝传输与主动遥操作。通过一些关键性技术难点的突破 ,达到了在 2 Mbit/ s码速率下按 CCSDS (空间数据系统协调委员会 )的位流协议在地基上实时复现出高质量的视频图像序列
Under the condition of limited channel bandwidth, real-time transmission of large-capacity information is one of the core problems to be solved in telecontrol technology for space applications. In order to realize the real-time seamless transmission and active remote operation of video images under the constraints of the specified transmission protocol and the specified channel link bandwidth, a technology structure combining dual bus addressing and double buffering is proposed. Through breakthroughs in some key technical difficulties, a high-quality sequence of video images is reproduced on the ground in real time at a bit rate of 2 Mbit / s according to the CCSDS (Spatial Data Systems Coordination Committee)