基于FPGA的光纤传感解调数据处理系统  

Optical fiber sensing demodulation data processing system based on FPGA

作　　者：王莉[1] 申雅峰[1] WANG Li;SHEN Yafeng(Changcheng Institute of Metrology&Measurement,Beijing 100095,China)

机构地区：[1]航空工业北京长城计量测试技术研究所,北京100095

出　　处：《计测技术》2022年第2期79-84,共6页Metrology & Measurement Technology

基　　金：航空科学基金项目(201222044002)。

摘　　要：为解决目前光纤传感测试领域存在的组网测试采集量大的问题,设计并实现了一种基于FPGA的大数据量实时处理系统,详细介绍了系统的硬件构架和关键模块设计,重点描述了FPGA通过寻峰模块和交叉读写缓存模块实现大数据量的实时处理方法。在FPGA中加入寻峰模块,从大量光谱数据中选取有效数据,减少传输的数据量,并通过交叉读写缓存保证数据传输的连续性,将筛选后的有效数据发送至上位机。通过实验对该系统的实际应用性能进行验证,结果表明该系统能够有效满足基于光谱采集的多通道光纤传感解调数据处理要求。A real-time processing system of large data volume based on FPGA is designed and implemented to address the problem of large amount of network test collection in the field of optical fiber sensing test.This paper introduces the hardware architecture and key module design of the system in detail,and focuses on the real-time processing method of large amount of data realized by FPGA through the peak-seeking module and the cross-reading and writing buffer module.The peak-seeking module is added to the FPGA to select valid data from a large amount of spectral data to reduce the amount of data transmitted,the continuity of data transmission is ensured through cross-read and write caches,and the filtered valid data are sent to the host computer.The practical application performance of the system is verified by experiments,and the results show that the system can effectively meet the data processing requirements of multi-channel optical fiber sensing demodulation based on spectrum acquisition.

关 键 词：大数据量 实时处理 FPGA 

分 类 号：TB9[一般工业技术—计量学]