Results 61 to 70 of about 17,540,816 (185)

Time-Frequency Analysis Methods: A Comprehensive Review of Techniques, Applications, and Emerging Trends

Anbar Journal of Engineering Sciences
Time-frequency analysis (TFA) bridges the gap between temporal and spectral signal representations, enabling the study of non-stationary phenomena. This paper reviews classical and modern TFA methods, including the Fourier Transform (FT), Short-Time ...
Zaynab N. Abdulhameed, Haraa Raheem Hatem, Jinan N. Shehab, Israa Hazem Ali, Marwa Al-Sultani   +4 more
doaj   +1 more source

Efficient Masked Autoencoder for Birdsong Representation with Applications on Wild Bird Species Classification

Integrative Zoology, EarlyView.
Research on mosquito feeding preferences and the malaria parasites they transmit is essential for understanding the interactions between hosts, vectors, and parasites. In this study, vertebrate hosts were identified in 72 mosquitoes. Most blood meals (58.7%) came from birds, representing 25 species, while 40.0% came from mammals (13 species), and 1.3 ...
Qin Zhang, Shipeng Hu, Hengrui Wang, Jizheng Yi, Guoxiong Zhou, Xiangyu Shen, Weixiong Peng, Zhishu Xiao, Aibin Chen   +8 more
wiley   +1 more source

On Beamforming with the Single-Sideband Transform

Applied Sciences
In this paper, we examine the use of the Single-Sideband Transform (SSBT) for convolutive beamformers. We explore its unique properties and implications for beamformer design.
Vitor Probst Curtarelli, Israel Cohen
doaj   +1 more source

A Multimodal Deep Learning Based Framework for Early and Accurate Diagnosis of Depression Using Electroencephalography and Event‐Related Potential Signals

Applied AI Letters, Volume 7, Issue 3, October 2026.
Cross Wavelet Transform (XWT) is combined with a pre‐trained AlexNet to extract rich time‐frequency features from non‐stationary EEG signals. Also, the proposed framework simultaneously extracts and integrates spatial (Node2vec), time‐frequency (XWT + AlexNet), and spectral (PSD + TSCN) features from EEG and ERP signals within a parallel architecture ...
Atefeh Abedzadeh Attar, Mohammad Hossein Moattar, Yahya Forghani   +2 more
wiley   +1 more source

Transkripsi Musik Gamelan Jawa Menggunakan Short Time Fourier Transform (Stft) [PDF]

, 2015
Panduan notasi musik yang digunakan untuk memainkan alat musik tradi- sional seperti Gamelan, sangat dibutuhkan oleh pemain dalam memainkan kembali alat musik tersebut. Pada umumnya, panduan notasi musik ini dibuat oleh seniman musik yang sudah banyak
Fitria, Liza
core  

Synergistic Integration of Artificial Merkel Disc and Meissner Corpuscle via Dermal Papillary Structures for Mechanically Filtered Multimodal Tactile Sensing

Advanced Science, Volume 13, Issue 50, 7 September 2026.
A multimodal tactile sensor module that mimics the spatial arrangement and function of Merkel discs and Meissner corpuscles within the human papillary structure operates in a self‐powered manner, responding to both dynamic and static stimuli, achieving tactile perception more similar to human skin.
Jaehyeong Kim, Bohee Maeng, Seunghwan Seo, Kyoung‐Yong Chun, Chang‐Soo Han   +4 more
wiley   +1 more source

Computing the fast Fourier transform on SIMD microprocessors [PDF]

, 2012
This thesis describes how to compute the fast Fourier transform (FFT) of a power-of-two length signal on single-instruction, multiple-data (SIMD) microprocessors faster than or very close to the speed of state of the art libraries such as FFTW (“Fastest ...
Blake, Anthony Martin
core  

An Adaptive Resolution Computationally Efficient Short-Time Fourier Transform

, 2008
International audienceThe short-time Fourier transform (STFT) is a classical tool, used for characterizing the time varying signals. The limitation of the STFT is its fixed time-frequency resolution.
Fesquet, Laurent, Qaisar, Saeed-Mian, Renaudin, Marc   +2 more
core   +1 more source

A Study of Parameters Setting of the STADZT

Acta Polytechnica, 2012
This paper deals with the new time-frequency Short-Time Approximated Discrete Zolotarev Transform (STADZT), which is based on symmetrical Zolotarev polynomials.
Václav Turoň
doaj  

Piezo‐Coupling Effects in Smart Polymers: Toward Ultrasensitive Sensing and Biomedical Applications

Advanced Science, Volume 13, Issue 51, 14 September 2026.
Piezo‐coupling effects are the foundational factors for the development of multifunctional and self‐powered platforms. Central to this advancement is the use of stimuli‐responsive smart polymers, which offer mechanical flexibility, biocompatibility, and simplified structural complexity with improved sensitivity and energy efficiency.
Duc Khanh Tran, Tuan Sang Tran, Thanh‐An Truong, Trung‐Hieu Vu, That Buu Ton, Dzung Viet Dao, Van Thanh Dau   +6 more
wiley   +1 more source