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Photonic instantaneous frequency measurement of wideband microwave signals. [PDF]
PLoS ONE, 2017 We propose a photonic system for instantaneous frequency measurement (IFM) of wideband microwave signals with a tunable measurement range and resolution based on a polarization-maintaining fiber Bragg grating (PM-FBG). Firstly, in order to be insensitive
Yueqin Li +5 more
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Power-Independent Microwave Photonic Instantaneous Frequency Measurement System [PDF]
SensorsThe ability to perform instantaneous frequency measurement (IFM) of unknown microwave signals holds significant importance across various application domains. This paper presents a power-independent microwave photonic IFM system.
Ruiqiong Wang, Yongjun Li
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Machine-Learning-Assisted Instantaneous Frequency Measurement Method Based on Thin-Film Lithium Niobate on an Insulator Phase Modulator for Radar Detection [PDF]
SensorsA simple microwave photonic, reconfigurable, instantaneous frequency measurement system based on low-voltage thin-film lithium niobate on an insulator phase modulator is put forward and experimentally demonstrated.
Qianqian Jia +4 more
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Photonics, 2022 Photonic-assisted receivers for instantaneous microwave frequency measurement are devices used to measure the instantaneous frequency and amplitude of one or more microwave signals in the optical range, typically used in radar systems.
Alexander Ivanov +4 more
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IEEE Photonics Journal, 2022 This paper presents a photonics-based instantaneous microwave frequency measurement system. The system operates based on the frequency-to-power mapping technique.
Henghao Chen +2 more
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Photonic-Assisted Instantaneous Frequency Measurement System Based on a Scalable Structure
IEEE Photonics Journal, 2019 We propose and demonstrate a new photonic-assisted instantaneous frequency measurement (IFM) system based on a scalable structure. By using multiple scalable modules, the proposed IFM system can achieve both large operating bandwidth and high measurement
Chengwu Yang, Ling Wang, Jianguo Liu
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Problem of the instantaneous sound frequency measurement
Archives of Acoustics, 2015 This paper presents a method for the measurement of the so - called quasi-instantaneous frequency of acoustic signals, which is an approximation of the instantaneous frequency defined on the basis of theoretical considerations.
Edward OZIMEK +2 more
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Fifty years of instantaneous frequency measurement
IET Radar, Sonar and Navigation, 2012 Quadrature phase discriminators, the core of wideband instantaneous frequency measurement (IFM) receivers and multiple base-line interferometry for accurate direction finding (DF), were invented in 1957, by S.J. Robinson of Mullard Research Laboratories (MRL).
exaly +2 more sources
Wideband High-Speed and High-Accuracy Instantaneous Frequency Measurement System
IEEE Photonics Journal, 2023 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
Chongjia Huang +3 more
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Energies, 2023 Processing physical quantities into an indirect signal is a standard method of transferring information about the measured quantity to the master system, which analyzes the data obtained from the acquisition system.
Dariusz Ĺwisulski, Piotr Warda
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