Results 11 to 20 of about 377,227 (256)
Optical parametric wideband frequency modulation
APL Photonics, 2022 Various types of photonic applications, such as sensing and communication, require the generation of wideband optical frequency-modulated (FM) signals.
Shota Ishimura +3 more
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Zhongguo dianli, 2023 In order to take full advantages of the new PV-Storage power station participating in power grid multi-time scale frequency modulation while considering the operation economy.
Guoming QIAN +4 more
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IEEE Access, 2020 In the waveform design, the distance measurement and resolution are a pair of irreconcilable contradictions. Linear Frequency Modulation (LFM) can alleviate this contradiction.
Yuankun Peng +7 more
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Transmission Perspective on the Mechanism of Coarse and Fine Crackle Sounds
Archives of Acoustics, 2021 The possibility of a normal distribution indicates that few particles are in the same phase during a breath and their reflections can be observed on the chest wall, then a few explosive waves with relatively large power occurr occasionally.
Bing-Yuh LU +2 more
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Detection of frequency modulation at large modulation frequencies [PDF]
The Journal of the Acoustical Society of America, 1978 Several studies have been made of the minimum frequency excursions Δf required for detection of frequency modulation, with modulation frequency fm. [E. Zwicker, Acustica, 2, 125–133 (1952) R. H. Kay and D. R. Matthews, J. Physiol. 225, 657–677 (1972)]. The graph of minimum Δf vs fm has a pronounced peak at large values of fm.
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Applied Sciences, 2022 The group velocity dispersion (GVD) occurring in the front end of high-power lasers is one of the primary factors leading to the conversion of frequency modulation (FM) to amplitude modulation (AM).
Xinlei Qian +4 more
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Method of calibrating modulation meter MI 2305
Vojnotehnički Glasnik, 2000 In this article an original way of calibrating the MI 2305 modulation meter is described. AM traceability is achieved using tree secondary etalons. FM traceability calibrating is achieved by using the Bessel zero method.
Milovan Unković
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Frequency modulated microrheology
Lab on a Chip, 2015 Coupling analog frequency modulation (FM) to the driving stimulus in active microrheology measurements conducted with optical tweezers effectively parallelizes numerous single-frequency experiments.
Matthew M, Shindel, Eric M, Furst
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A New Method to Verify the Measurement Speed and Accuracy of Frequency Modulated Interferometers
Applied Sciences, 2021 The measurement speed and measurement accuracy of a displacement measuring interferometer are key parameters. To verify these parameters, a fast and high-accuracy motion is required.
Toan-Thang Vu +4 more
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Comparative Analysis of Mathematical Models of Tracking Radio Altimeters
Известия высших учебных заведений России: Радиоэлектроника, 2022 Introduction. Tracking radio altimeters of low altitudes are widely used in civil aviation. These devises use periodic frequency modulated continuous wave (FMCW) signals, while altitude measurements are based on processing the beat signal processing. For
A. A. Monakov, A. A. Tarasenkov
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