符合ccsds标准的遥测同步和信道编码系统及FPGA实现

A design of telemetry synchronization and channel coding system according to CCSDS specification and FPGA implementation

针对日益复杂的地面测控需求,参照空间数据系统咨询委员会(CCSDS)分包遥测标准,在现场可编程门阵列(Field-Programmable Gate Array,FPG A)平台上实现了一套高效、可靠的遥测同步和信道编码系统。系统不仅降低了信号传输误码率,提高了数据传输的可靠性,同时降低了硬件实现的复杂度并减少了资源消耗。实验结果标明:该系统在占用资源较少的情况下,能准确地完成遥测数据的同步和信道编码,吞吐量可达72 Mbps,满足深空通信要求。

In view of increasingly complex telemetry requirements of ground station, referring to Consultative Committee for Space Data Systems(CCSDS) packet telemetry standard, an efficient and reliable telemetry synchronization and channel coding system is designed on Field-Programmable Gate Array(FPGA) platform. The system reduces the bit error rate, improves the reliability of data transmission, and reduces the complexity of hardware and resource consumption. The experimental result indicates: the system completes synchronization and channel coding of telemetry data accurately in the case of occupying less resource and attains throughput up to 96 Mbps which meets the requirements of deep space communication.