星载子网1553B总线数据传输与管理

卫星正常运行要求星载子网的数据传输管理需具备可靠性、安全性与实时性，能够在规定的时间内完成传输任务，因此需要设计一种合理的数据传输管理方案来满足要求。考虑到1553B总线的数据传输具备速率高、可靠性好和实时性强等优点，选取1553B总线作为星载子网的数据总线，并提出了一种适用的数据传输管理方案。方案合理设计了星载子网的消息结构、消息种类、组网方式、消息传输机制、消息传输流程、消息传输时隙等。最后通过搭建测试平台对传输管理方案进行测试，测试结果表明此方案传输速率高、误码率低、实时性强，可以满足要求。

A Data Transmission and Management Scheme of Inter-Satellite Network on 1553B Bus

The normal operation of the satellite requires the data transmission and management of inter-satellite network with reliability, timeliness, security, therefore transport tasks can be completed within the time prescribed. Hence an appropriate data transmission and management scheme should be designed to meet those requirements.1553B bus based data transmission has many advantages such as high transmission speed, good reliability and strong timeliness, thus 1553B bus is chosen as the data bus of the inter-satellite network. What’s more, a suitable data transmission and management scheme is proposed. This scheme reasonably designs the data structures, data types, network type, data transmission mechanism, data transmission process and data transmission time sequence. Finally, the data transmission and management scheme is tested on testing platform, test result shows that this scheme has high transmission speed, low error rate, good real-time performance and it meets the requirements.