Design of an FPGA-Based High-Speed Data Acquisition System for Frequency Scanning Interferometry Long-Range Measurement
Frequency scanning interferometry (FSI) has become a popular method for long-range, targetbased, distance measurements. However, the cost of developing such systems, particularly the electronic components required for high-speed data acquisition (DAQ), remains a significant concern. In this article,...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2024-01-01
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| Series: | IEEE Open Journal of Instrumentation and Measurement |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10374215/ |
| _version_ | 1797197371323449344 |
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| author | Sivagunalan Sivanathan Mohammed Ali Roula Kang Li Dun Qiao Nigel Joseph Copner |
| author_facet | Sivagunalan Sivanathan Mohammed Ali Roula Kang Li Dun Qiao Nigel Joseph Copner |
| author_sort | Sivagunalan Sivanathan |
| collection | DOAJ |
| description | Frequency scanning interferometry (FSI) has become a popular method for long-range, targetbased, distance measurements. However, the cost of developing such systems, particularly the electronic components required for high-speed data acquisition (DAQ), remains a significant concern. In this article, we present a cost-effective, FPGA-based real-time DAQ system specifically designed for FSI, with a focus on long absolute distance measurements. Our design minimizes the use of third-party intellectual property (IP) and is fully compatible with the Xilinx FPGA 7 series families. The hardware employs a 160-MS/s, 16-bit dual-channel ADC interfaced to the FPGA via a low-voltage differential signaling (LVDS). The proposed system incorporates an external sampling clock, referred to as the K-clock, which linearizes the laser’s tuning rate, enabling optical measurements to be sampled at equal optical frequency intervals rather than equal time intervals. Additionally, we present the design of a high-speed, 160-MS/s ADC module for the front-end analog signal interface and the LVDS connection to the chosen FPGA. We demonstrate that the digitized data samples can be efficiently transmitted to a polarization controller (PC) application via a USB interface for further processing. |
| first_indexed | 2024-04-24T06:42:54Z |
| format | Article |
| id | doaj.art-10db187c7070414fbc144ca86fd2cca7 |
| institution | Directory Open Access Journal |
| issn | 2768-7236 |
| language | English |
| last_indexed | 2024-04-24T06:42:54Z |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Open Journal of Instrumentation and Measurement |
| spelling | doaj.art-10db187c7070414fbc144ca86fd2cca72024-04-22T20:23:34ZengIEEEIEEE Open Journal of Instrumentation and Measurement2768-72362024-01-01311010.1109/OJIM.2023.334726810374215Design of an FPGA-Based High-Speed Data Acquisition System for Frequency Scanning Interferometry Long-Range MeasurementSivagunalan Sivanathan0https://orcid.org/0000-0001-7583-1077Mohammed Ali Roula1https://orcid.org/0000-0002-6832-9115Kang Li2https://orcid.org/0000-0002-2306-4037Dun Qiao3https://orcid.org/0000-0002-9467-0499Nigel Joseph Copner4https://orcid.org/0000-0002-5506-6141Faculty of Computing Engineering and Science, University of South Wales (Treforest Campus), Pontypridd, U.KFaculty of Computing Engineering and Science, University of South Wales (Treforest Campus), Pontypridd, U.KFaculty of Computing Engineering and Science, University of South Wales (Treforest Campus), Pontypridd, U.KSchool of Physics and Astronomy, Cardiff University, CF10 3AT, Cardiff, U.KFaculty of Business and Physical Science, Aberystwyth University, Aberystwyth, U.KFrequency scanning interferometry (FSI) has become a popular method for long-range, targetbased, distance measurements. However, the cost of developing such systems, particularly the electronic components required for high-speed data acquisition (DAQ), remains a significant concern. In this article, we present a cost-effective, FPGA-based real-time DAQ system specifically designed for FSI, with a focus on long absolute distance measurements. Our design minimizes the use of third-party intellectual property (IP) and is fully compatible with the Xilinx FPGA 7 series families. The hardware employs a 160-MS/s, 16-bit dual-channel ADC interfaced to the FPGA via a low-voltage differential signaling (LVDS). The proposed system incorporates an external sampling clock, referred to as the K-clock, which linearizes the laser’s tuning rate, enabling optical measurements to be sampled at equal optical frequency intervals rather than equal time intervals. Additionally, we present the design of a high-speed, 160-MS/s ADC module for the front-end analog signal interface and the LVDS connection to the chosen FPGA. We demonstrate that the digitized data samples can be efficiently transmitted to a polarization controller (PC) application via a USB interface for further processing.https://ieeexplore.ieee.org/document/10374215/Data acquisition (DAQ)FIFOFPGAfrequency scanning interferometry (FSI) hardwarehigh-speed DAQLIDAR |
| spellingShingle | Sivagunalan Sivanathan Mohammed Ali Roula Kang Li Dun Qiao Nigel Joseph Copner Design of an FPGA-Based High-Speed Data Acquisition System for Frequency Scanning Interferometry Long-Range Measurement IEEE Open Journal of Instrumentation and Measurement Data acquisition (DAQ) FIFO FPGA frequency scanning interferometry (FSI) hardware high-speed DAQ LIDAR |
| title | Design of an FPGA-Based High-Speed Data Acquisition System for Frequency Scanning Interferometry Long-Range Measurement |
| title_full | Design of an FPGA-Based High-Speed Data Acquisition System for Frequency Scanning Interferometry Long-Range Measurement |
| title_fullStr | Design of an FPGA-Based High-Speed Data Acquisition System for Frequency Scanning Interferometry Long-Range Measurement |
| title_full_unstemmed | Design of an FPGA-Based High-Speed Data Acquisition System for Frequency Scanning Interferometry Long-Range Measurement |
| title_short | Design of an FPGA-Based High-Speed Data Acquisition System for Frequency Scanning Interferometry Long-Range Measurement |
| title_sort | design of an fpga based high speed data acquisition system for frequency scanning interferometry long range measurement |
| topic | Data acquisition (DAQ) FIFO FPGA frequency scanning interferometry (FSI) hardware high-speed DAQ LIDAR |
| url | https://ieeexplore.ieee.org/document/10374215/ |
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