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Instantaneous Frequency Estimation of Radio Frequency Signal Based on Rydberg Atomic Receiver
IEEE Photonics JournalRydberg atom receiver attracts much research interest for promising applications in communications and sensing. Generally, Rydberg atomic receiver is utilized with microwave frequency comb (MFC) to expand its detectable frequency range. MFC consists of a
Guanyu Chen +3 more
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IF Estimation Using Spectrogram and Scalogram [PDF]
Journal of Electrical and Electronics Engineering, 2013 This paper presents the results obtained using an instantaneous frequency estimation method, based upon the detection of the peaks of the spectrogram and the scalogram.
REIZ Romulus, MORGOŞ Lucian
doaj
Advanced Functional Materials, EarlyView.Conjugated polymer–nanocrystal composites are investigated to develop fast, high‐yield green scintillators. The polymer F8BT enables efficient, ultrafast emission, while blends with non‐emitting HfO2 nanocrystals and luminescent CdZnS/ZnS quantum dots reveal distinct sensitization mechanisms.
Chenger Wang +13 more
wiley +1 more source
Shock and Vibration, 2016 Shock pulse method is a widely used technique for condition monitoring of rolling bearing. However, it may cause erroneous diagnosis in the presence of strong background noise or other shock sources. Aiming at overcoming the shortcoming, a pulse adaptive
Jinbao Yao, Baoping Tang, Jie Zhao
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Occipital and left temporal instantaneous amplitude and frequency oscillations correlated with access and phenomenal consciousness [PDF]
Given the hard problem of consciousness (Chalmers, 1995) there are no brain electrophysiological correlates of the subjective experience (the felt quality of redness or the redness of red, the experience of dark and light, the quality of depth in a ...
Pereira, Vitor Manuel Dinis
core
Advanced Functional Materials, EarlyView.Efficient two‐photon resonant Raman scattering (TRRS) is observed in the layered perovskite (PEA)2PbI4, with the biexciton level acting as an intermediate state. TRRS undergoes two‐photon frequency shift upon input frequency tuning, persists up to 90 K, and shows clear threshold behavior and polarization selection rules.
Seung Han Shin +7 more
wiley +1 more source
Instantaneous Frequency Estimation Using Stochastic Calculus and Bootstrapping
EURASIP Journal on Advances in Signal Processing, 2005 Stochastic calculus methods are used to estimate the instantaneous frequency of a signal. The frequency is modeled as a polynomial in time. It is assumed that the phase has a Brownian-motion component. Using stochastic calculus, one is able to develop a
Abutaleb A
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Diagnosis of bolt loosening using reflected ultrasonic pulse
Nihon Kikai Gakkai ronbunshu, 2019 Diagnosis of the bolt loosening is important in the industrial field and the medical field such as dental implants. This study proposes a new non-destructive testing method for the bolt loosening using ultrasonic pulse projected to the side of the bolt ...
Ren KADOWAKI, Shoki IKEDA, Takumi INOUE
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Advanced Functional Materials, EarlyView.A 2D heterointerface with a two‐site anchor bridge suppresses nonradiative recombination at the perovskite/C₆₀ interface by reducing surface defects, elevating the Fermi level, and strengthening the electric field. This strategy enables efficient electron extraction, delivering 26.32% efficiency, 1.217 V Voc, excellent operational stability, and broad ...
Chaohui Li +27 more
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Real-Time Wave Energy Converter Control Using Instantaneous Frequency
Applied SciencesWave Energy Converters (WECs) rely on effective Power Take-Off (PTO) control strategies to maximize energy absorption under dynamic sea conditions.
Inyong Kim +5 more
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