有限通信带宽下卫星通信编码方案研究

Research on Satellite Communication Coding Scheme under Limited Communication Bandwidth

卫星通信的发展已经涉及了国民生活的各个方面。对在有限通信带宽条件下更高效、稳定和快速地传输编码的方法进行了研究。编码方法针对不同功能特点设计了4种优化方案,包括优先级设计、编码组合设计、时效设计和数据压缩设计。其中,优先级设计采用了队列设计方式,达到了不同类型通信信息不同处理的需求;编码组合设计采用排序组合设计,达到了有限带宽条件下编码更多的通信信息;时效设计通过时标标识的设计保证了通信信息的时间延迟;数据压缩设计通过对数据段进行压缩设计达到了在发送更长通信帧的需求。试验结果表明,通过这些优化设计,有效提高了通信信息的效率,并满足了通信的稳定性和时效性等需求。

The development of satellite communication has covered every aspect of national life.A more efficient,stable and fast transmission coding method is studied under the limited communication bandwidth conditions.There are four optimization schemes for different functional characteristics:priority design,coding combination design,aging design and data compression design.The priority design adopts the queue design approach to meet the requirements of different types of communication information requiring different processing methods.The sort combination design is used in the coding combination design,and more communication information is coded under the condition of limited bandwidth.The time delay of communication information is ensured by the design of time marking in the aging design.The data compression design meets the requirement of sending longer communication frame by compressing the data segment.The experiment results show that the efficiency of communication information is improved by these optimization designs,and the requirements of communication stability and timeliness are satisfied.