Results 1 to 10 of about 9,784,899 (249)

Harmonics Signal Feature Extraction Techniques: A Review

open access: yesMathematics, 2023
Harmonic estimation is essential for mitigating or suppressing harmonic distortions in power systems. The most important idea is that spectrum analysis, waveform estimation, harmonic source classification, source location, the determination of harmonic ...
Minh Ly Duc, Petr Bilik, Radek Martinek
doaj   +1 more source

Frequency Synchronization in Frequency Domain OFDM-IM based WLAN Systems

open access: yesJournal of Communications Software and Systems, 2023
The next-generation of wireless local area network systems are being conceptualized with new applications, smart devices and use cases which mandate unprecedented levels of high data rates, spectral efficiency, reliability, low latency and high energy ...
Lalitha H, Navin Kumar
doaj   +1 more source

Frequency-Domain Detection for Frequency-Division Multiplexing QEPAS

open access: yesSensors, 2022
To achieve multi-gas measurements of quartz-enhanced photoacoustic spectroscopy (QEPAS) sensors under a frequency-division multiplexing mode with a narrow modulation frequency interval, we report a frequency-domain detection method. A CH4 absorption line
Xiang Chen   +6 more
doaj   +1 more source

Time- vs. Frequency-domain Identification of Parametric Radiation Force Models for Marine Structures at Zero Speed [PDF]

open access: yesModeling, Identification and Control, 2008
The dynamics describing the motion response of a marine structure in waves can be represented within a linear framework by the Cummins Equation. This equation contains a convolution term that represents the component of the radiation forces associated ...
Tristan Perez, Thor I. Fossen
doaj   +1 more source

Vehicle model response in frequency domain [PDF]

open access: yesMATEC Web of Conferences, 2020
The offered article deals with one of the possibilities of numerical analysis of the vehicle response in frequency domain. It works with quarter model of vehicle.
Melcer Jozef, Valašková Veronika
doaj   +1 more source

Joint Identification of Infinite-Frequency Added Mass and Fluid-Memory Models of Marine Structures [PDF]

open access: yesModeling, Identification and Control, 2008
This paper addresses the problem of joint identification of infinite-frequency added mass and fluid memory models of marine structures from finite frequency data.
Tristan Perez, Thor I. Fossen
doaj   +1 more source

Frequency Domain Characteristics Analysis of Non-Coupled PCNN [PDF]

open access: yesJisuanji gongcheng, 2022
The Pulse Coupled Neural Network (PCNN) model is characterized by pulse modulation and coupling connection, which is widely used in the field of digital image processing.However, the existing research on the PCNN model focuses on analyzing the ...
DENG Xiangyu, Lü Yahui, CHEN Yan
doaj   +1 more source

Uncovering interactions in the frequency domain. [PDF]

open access: yesPLoS Computational Biology, 2008
Oscillatory activity plays a critical role in regulating biological processes at levels ranging from subcellular, cellular, and network to the whole organism, and often involves a large number of interacting elements.
Shuixia Guo   +3 more
doaj   +1 more source

Mirror-induced reflection in the frequency domain

open access: yesNature Communications, 2022
We show frequency domain mirrors that provide reflections of optical mode propagation in the frequency domain. We theoretically investigated the mirror properties and experimentally demonstrate it using polarization and coupled-resonator-based coupling ...
Yaowen Hu   +6 more
doaj   +1 more source

A Frequency-Domain Convolutional Neural Network Architecture Based on the Frequency-Domain Randomized Offset Rectified Linear Unit and Frequency-Domain Chunk Max Pooling Method

open access: yesIEEE Access, 2020
It is of great importance to construct a convolutional neural network architecture in the frequency domain to explore the theory of deep learning in the frequency domain.
Jinhua Lin, Lin Ma, Jingxia Cui
doaj   +1 more source

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