基于FPGA的多通道高速串行数据采集系统设计
Design of multi-channel high-speed serial data acquisition system based on FPGA
安国臣 1袁玉鑫 1刘若凡 1王晓君1
作者信息
- 1. 河北科技大学,河北石家庄 050018
- 折叠
摘要
针对卫星导航信号抗干扰领域中进行高精度高速多通道数据采集的需要,系统采用ADI公司的16位高速串行AD转换芯片AD9653,完成模数转换,其转换精度可达16比特,转换速率最高为125MSPS.分析AD9653的高速串行数据接口特点,采用Xilinx公司的Kintex-7系列FPGA提供的片同步技术,进行位时钟自适应相位校准和数据帧调整研究,保证了高速串行数据传输的稳定性与正确性.采用内部FIFO数据缓存的方式实现多通道数据的片内同步以保证后续抗干扰算法的正确处理.研究结果表明,使用该方法进行高速串行数据采集时系统稳定可靠、正确无误.为多通道高速串行数据采集提供了一种切实可行的解决方案,对类似需求的数据采集系统具有一定的参考价值.
Abstract
In order to meet the requirements of high-precision,high-speed and multi-channel data acquisition in the field of sat-ellite navigation signal anti-jamming,the system uses the 16 bit high-speed serial AD conversion chip AD9653 from ADI Company to complete analog-to-digital conversion,with the conversion accuracy of 16 bits and the highest conversion rate of 125MSPS.The char-acteristics of high-speed serial data interface of AD9653 are analyzed,and the chip synchronization technology provided by Kintex-7 series FPGA of Xilinx Company is adopted to carry out the research on bit clock adaptive phase calibration and data frame adjustment,which ensures the stability and correctness of high-speed serial data transmission.The internal FIFO data buffer is used to realize the on-chip synchronization of multi-channel data,so as to ensure the correct processing of the subsequent anti-interference algorithm.The research results show that the system is stable,reliable and correct when using this method for high-speed serial data acquisition.It provides a practical solution for multi-channel high-speed serial data acquisition,and has certain reference value for data acquisi-tion systems with similar requirements.
关键词
高速数据采集/多通道/AD9653/片同步技术Key words
High speed data acquisition/Multi channel/AD9653/Chip synchronization technology引用本文复制引用
基金项目
河北省省级科技计划新一代电子信息技术创新专项(21310402D)
出版年
2024
国家科技期刊平台
NSTL
万方数据