Wideband High-Speed and High-Accuracy Instantaneous Frequency Measurement System
A new photonic-assisted instantaneous frequency measurement system is presented. It overcomes the latency problem in the reported structures based on the frequency-to-time mapping technique or the frequency-to-power mapping technique that involves a long length of fiber, and at the same time, enable...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2023-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10102483/ |
| _version_ | 1797838776140038144 |
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| author | Chongjia Huang Erwin Hoi Wing Chan Peng Hao Xudong Wang |
| author_facet | Chongjia Huang Erwin Hoi Wing Chan Peng Hao Xudong Wang |
| author_sort | Chongjia Huang |
| collection | DOAJ |
| description | A new photonic-assisted instantaneous frequency measurement system is presented. It overcomes the latency problem in the reported structures based on the frequency-to-time mapping technique or the frequency-to-power mapping technique that involves a long length of fiber, and at the same time, enables the incoming microwave signal frequency to be measured over a wide frequency range with only small errors. The system generates three low-frequency signals. The phases of the three low-frequency signals are compared. One of the two low-frequency signal phase differences is used to estimate the incoming microwave signal frequency unambiguously over a wide frequency range and the other is used to provide accurate microwave signal frequency measurement. A proof-of-concept experiment is set up. Experimental results show, by measuring the phase difference of two low-frequency signals, the frequency of the input microwave signal can be determined unambiguously in 15 GHz and 500 MHz frequency ranges with errors below ±220 MHz and ±10 MHz respectively. Hence, by using two low-frequency signal phase differences, the input microwave signal frequency can be determined accurately over a wide frequency range. The new photonic-assisted frequency measurement system has a fast response time, which is an order of magnitude shorter than that of the systems based on the frequency-to-time mapping technique and the frequency-to-power mapping technique with a kilometer-long fiber. |
| first_indexed | 2024-04-09T15:46:14Z |
| format | Article |
| id | doaj.art-5e6fcfe1b83d4fd6abd34bc165bbcfaa |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-04-09T15:46:14Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-5e6fcfe1b83d4fd6abd34bc165bbcfaa2023-04-26T23:00:05ZengIEEEIEEE Photonics Journal1943-06552023-01-011531810.1109/JPHOT.2023.326714310102483Wideband High-Speed and High-Accuracy Instantaneous Frequency Measurement SystemChongjia Huang0https://orcid.org/0000-0001-8424-4093Erwin Hoi Wing Chan1https://orcid.org/0000-0003-0885-4572Peng Hao2Xudong Wang3https://orcid.org/0000-0002-8206-7334Photonics Information Innovation Center and Hebei Provincial Center for Optical Sensing Innovations, College of Physics Science & Technology, Hebei University, Baoding, ChinaFaculty of Science and Technology, Charles Darwin University, Darwin, NT, AustraliaPhotonics Information Innovation Center and Hebei Provincial Center for Optical Sensing Innovations, College of Physics Science & Technology, Hebei University, Baoding, ChinaGuangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou, ChinaA new photonic-assisted instantaneous frequency measurement system is presented. It overcomes the latency problem in the reported structures based on the frequency-to-time mapping technique or the frequency-to-power mapping technique that involves a long length of fiber, and at the same time, enables the incoming microwave signal frequency to be measured over a wide frequency range with only small errors. The system generates three low-frequency signals. The phases of the three low-frequency signals are compared. One of the two low-frequency signal phase differences is used to estimate the incoming microwave signal frequency unambiguously over a wide frequency range and the other is used to provide accurate microwave signal frequency measurement. A proof-of-concept experiment is set up. Experimental results show, by measuring the phase difference of two low-frequency signals, the frequency of the input microwave signal can be determined unambiguously in 15 GHz and 500 MHz frequency ranges with errors below ±220 MHz and ±10 MHz respectively. Hence, by using two low-frequency signal phase differences, the input microwave signal frequency can be determined accurately over a wide frequency range. The new photonic-assisted frequency measurement system has a fast response time, which is an order of magnitude shorter than that of the systems based on the frequency-to-time mapping technique and the frequency-to-power mapping technique with a kilometer-long fiber.https://ieeexplore.ieee.org/document/10102483/Optical signal processingmicrowave measurementfiber optics links and subsystemsradio frequency photonics |
| spellingShingle | Chongjia Huang Erwin Hoi Wing Chan Peng Hao Xudong Wang Wideband High-Speed and High-Accuracy Instantaneous Frequency Measurement System IEEE Photonics Journal Optical signal processing microwave measurement fiber optics links and subsystems radio frequency photonics |
| title | Wideband High-Speed and High-Accuracy Instantaneous Frequency Measurement System |
| title_full | Wideband High-Speed and High-Accuracy Instantaneous Frequency Measurement System |
| title_fullStr | Wideband High-Speed and High-Accuracy Instantaneous Frequency Measurement System |
| title_full_unstemmed | Wideband High-Speed and High-Accuracy Instantaneous Frequency Measurement System |
| title_short | Wideband High-Speed and High-Accuracy Instantaneous Frequency Measurement System |
| title_sort | wideband high speed and high accuracy instantaneous frequency measurement system |
| topic | Optical signal processing microwave measurement fiber optics links and subsystems radio frequency photonics |
| url | https://ieeexplore.ieee.org/document/10102483/ |
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