基于FPGA和国产射频收发器的多通道信号源设计与实现
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作者单位:

南京信息工程大学电子与信息工程学院 南京 210044

中图分类号:

TN919

基金项目:

国家重点研发计划(2022YFB2902100)、江苏省重点研发计划(BE2023088)项目资助


Design and implementation of multi-channel signal source based on FPGA and domestic RF Transceiver
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Affiliation:

School of Electronic and Information Engineering, Nanjing University of Information Science and Technology,Nanjing 210044, China

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    摘要:

    针对通信测试中需要模拟多种信号这一需求,提出一种大带宽、多通道的信号源硬件架构,以FPGA作为硬件控制核心以及基带信号发生器,利用FPGA中的高速串行收发器GTY,实现JESD204C接口协议,完成单Lane 16.5 Gbps的数据率传输。以CX8242K射频收发器为射频发射端,通过Microblaze进行配置,实现了调制信号从基带到高中频的高质量产生。针对目标频段,进行了频率规划,并设计了时钟方案和多通道同步方案。最终实现了一款具备宽频带、高精度、低杂散的国产化多通道矢量信号源。经测试证明,该矢量信号源能正常生成各种矢量调制信号,并实现10 M~6 GHz范围内的载波频率调节,支持单通道发射信号最大带宽高达800 MHz,在实际工程测试中有很高的应用价值。

    Abstract:

    In view of the need to simulate multiple signals in communication testing, a large-bandwidth, multi-channel signal source hardware architecture is proposed. FPGA is used as the hardware control core and baseband signal generator. The high-speed serial transceiver GTY in FPGA is used to implement the JESD204C interface protocol and complete the single-lane 16.5 Gbps data rate transmission. The CX8242K RF transceiver is used as the RF transmitter and configured through Microblaze to achieve high-quality generation of modulated signals from baseband to high-IF. Frequency planning is carried out for the target frequency band, and clock schemes and multi-channel synchronization schemes are designed. Finally, a domestically produced multi-channel vector signal source with wide bandwidth, high precision and low spurious is realized. Tests have proved that the vector signal source can normally generate various vector modulation signals, and realize carrier frequency adjustment in the range of 10 M~6 GHz, supporting a single-channel transmission signal with a maximum bandwidth of up to 800 MHz, which has high application value in actual engineering tests.

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引用本文

何冉,李鹏,冯姣.基于FPGA和国产射频收发器的多通道信号源设计与实现[J].电子测量技术,2024,47(22):1-9

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  • 在线发布日期: 2025-01-16
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