基于USB3.0总线的卫星数传基带数据接收模块设计

a baseband data-receiving module of the Satellite data-transmission system Based on USB3.0 Bus

摘要:

卫星数传基带数据接收是卫星数传系统测试的基础。通过对USB3.0总线协议的分析，提出了一种基于USB3.0总线的卫星数传基带数据接收模块的设计方法。该模块以FPGA和USB 3.0接口芯片（CYUSB3014）为核心，采用FPGA实现数据流的同步、加扰、RS译码操作，采用USB3.0接口芯片实现数传数据接收。经试验证明，该模块结合PC机，数据接收速率可到2.1Gbps，与主流基于CPCIe\VPX高速串行总线的数据接收平台相比，成本降低显著，便携性高。

Abstract:

To test a satellite data-transmission system. Baseband data has to be received first.According to the USB3.0 Specification , proposes a new design of baseband data-receiving module .With FPGA ,the module carries on the data stream’s synchronization，scrambling and RS Decoding.It succeeds in communication with the computer depended on USB3.0 BUS controller (CYUSB3014).And the test results show the upload data rate is up to 2.1Gbps.Compared with the data-receiving platform based on CPCIe\VPX BUS，it is more economic and more portable .