| 摘要: |
| 地面终端站KSA（Ka-band Single Access）高速卫星数据传输接收系统基带数据的处理既要实现基带数据记录存储、实时转发和事后按可控制的帧频转发等业务，又要满足返向高速基带输出的处理时延不大于40 ms实时性需求。针对基带数据的处理业务多样性和实时性之间的矛盾，提出了一种基于CPCI（Compact Peripheral Component Interconnect）结构且满足基带数据的处理应用业务多样性和高实时性的处理架构，实现了一种高速卫星信号基带数据实时处理平台。经搭建测试平台并拷机500 h，该架构下的处理平台能够稳定地实时处理600 Mb/s卫星基带数据的所有业务类型，并在地面终端站KSA卫星信号数据传输系统中得到了工程实践验证。 |
| 关键词: KSA高速卫星数据传输系统 基带数据 实时处理架构 |
| DOI： |
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| 基金项目: |
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| Design and implementation of real-time processing architecture of baseband data in KSA data transmission system for satellite |
| ZHONG Yu,LIU Hongwei |
| (Southwest China Institute of Electronic Technology,Chengdu 610036,China) |
| Abstract: |
| For the Ka-band single access(KSA) data transmission system for the high-speed satellite in the ground terminal station,the baseband data needs to be stored,transmitted to the storage in real-time or transmitted afterwards from storage to the center station at the controlled frame frequency，and the processing time of the baseband data is required to be less than 40 ms.In order to solve the contradiction between the diversity and real-time of the baseband data processing business，this paper proposes a processing architecture based on compact peripheral component interconnect(CPCI) structure to satisfy the diversity and high real-time of the business of the processing baseband data，and a real-time processing platform is designed for the business of processing baseband data of the high speed satellite signal.To verify the correctness of the real-time processing architecture in the high-speed baseband data transmission system for the satellite，a test platform is set up and operated continuously for 500 h.The experimental results show that the processing architecture can steadily process baseband data at 600 Mb/s for all satellite business types in real-time,and it has been applied in engineering systems such as the KSA high-speed satellite data transmission system in the ground terminal station successfully. |
| Key words: KSA data transmission system for high-speed satellite baseband data real-time processing architecture |
《电讯技术》编辑部 