Results 21 to 30 of about 10,742,237 (292)

Infrared Small Target Detection Method Based on Frequency Domain Clutter Suppression and Spatial Feature Extraction

open access: yesIEEE Access, 2023
With the continuous development of infrared technology, the application of infrared imagery is increasingly widespread. Nonetheless, infrared imagery suffers from low contrast and high noise characteristics, making it challenging to detect and recognize ...
Chengpeng Duan   +5 more
doaj   +1 more source

Leveraging Frequency Domain Learning in 3D Vessel Segmentation

open access: yes2023 IEEE International Conference on Bioinformatics and Biomedicine (BIBM), 2023
Coronary microvascular disease constitutes a substantial risk to human health. Employing computer-aided analysis and diagnostic systems, medical professionals can intervene early in disease progression, with 3D vessel segmentation serving as a crucial component.
Xinyuan Wang 0009   +6 more
openaire   +3 more sources

Learning Frequency Domain Approximation for Binary Neural Networks

open access: yesCoRR, 2021
12 ...
Yixing Xu   +5 more
openaire   +3 more sources

Joint Learning of Frequency and Spatial Domains for Dense Predictions

open access: yesCoRR, 2022
Current artificial neural networks mainly conduct the learning process in the spatial domain but neglect the frequency domain learning. However, the learning course performed in the frequency domain can be more efficient than that in the spatial domain.
Shaocheng Jia, Wei Yao 0008
openaire   +2 more sources

Frequency-Domain Turbo Equalisation in Coded SC-FDMA Systems: EXIT Chart Analysis and Performance [PDF]

open access: yes, 2012
In this paper, we investigate the achievable performance of channel coded single-carrier frequency division multiple-access (SC-FDMA) systems employing various detection schemes, when communicating over frequency-selective fading channels.
Zhang, Jiayi   +5 more
core   +1 more source

Automatic Modulation Recognition Method Based on Multimodal Time-Frequency Feature Fusion [PDF]

open access: yesJisuanji kexue, 2023
Automatic modulation recognition (AMR) is a key technology in cognitive radio and has a wide range of applications in wireless communication.Aiming at the problem that most of the existing automatic modulation classification methods only use the single ...
HE Chao, CHEN Jinjie, JIN Zhao, LEI Yinjie
doaj   +1 more source

Joint Time-Frequency and Time Domain Learning for Speech Enhancement [PDF]

open access: yesProceedings of the Twenty-Ninth International Joint Conference on Artificial Intelligence, 2020
For single-channel speech enhancement, both time-domain and time-frequency-domain methods have their respective pros and cons. In this paper, we present a cross-domain framework named TFT-Net, which takes time-frequency spectrogram as input and produces time-domain waveform as output.
Chuanxin Tang   +4 more
openaire   +2 more sources

Low-complexity iterative frequency domain decision feedback equalization

open access: yes, 2011
Single-carrier transmission with frequency domain equalization (SC-FDE) offers a viable design alternative to the classic orthogonal frequency division multiplexing technique.
Zhang, Chao   +4 more
core   +2 more sources

A frequency-domain approach to learning control: implementation for a robot manipulator [PDF]

open access: yesIEEE Transactions on Industrial Electronics, 1992
A frequency-domain approach to the analysis and design of learning control laws for achieving a desired repetitive behavior in a dynamical system is presented. The scheme uses two separate filters in order to obtain rapid improvement in a specified bandwidth, while cutting off possibly destabilizing dynamic effects that would bar learning convergence ...
DE LUCA, Alessandro, PAESANO G, ULIVI G.
openaire   +3 more sources

Adaptive frequency-domain equalization for single-carrier MIMO systems [PDF]

open access: yes, 2004
Channel estimation and tracking pose real problems in wideband single-carrier wireless communication systems employing multiple transmit and receive antennas. An alternative to estimating the channel is to adaptively equalize the received symbols.
Coon, J   +7 more
core   +1 more source

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