Results 111 to 120 of about 1,921,662 (293)

Multiplierless discrete Fourier transform based on moments

Tongxin xuebao, 2009
A novel algorithm to perform Discrete Fourier Transform（DFT） multiplierlessly was proposed.First, by modular mapping and truncating Taylor series expansion, the DFT was expressed in the form of the product of the constants and discrete moments.Second, by
LIU Zhen-bing, LIU Jian-guo, WANG Guo-you   +2 more
doaj   +2 more sources

Using an aliasing operator and a single discrete Fourier transform to down-sample the Fresnel transform [PDF]

, 2012
In Digital Holography there are applications where computing a few samples of a wavefield is sufficient to retrieve an image of the region of interest.
María Albertina Castro Ibarra, MIGUEL OCTAVIO ARIAS ESTRADA   +1 more
core  

Comparison of DeePMD, MTP, GAP, ACE and MACE Machine‐Learned Potentials for Radiation‐Damage Simulations: A User Perspective

Advanced Intelligent Discovery, EarlyView.
The authors evaluated six machine‐learned interatomic potentials for simulating threshold displacement energies and tritium diffusion in LiAlO2 essential for tritium production. Trained on the same density functional theory data and benchmarked against traditional models for accuracy, stability, displacement energies, and cost, Moment Tensor Potential ...
Ankit Roy, Ram Devanathan, Sarah Allec, Giridhar Nandipati, Andrew M. Casella, David J. Senor, Duane D. Johnson, Ganesh Balasubramanian, Ayoub Soulami   +8 more
wiley   +1 more source

A Midpoint-Search Frequency Estimator Based on the Discrete Fourier Transform (MS-DFT)

Electronics
This paper proposes a frequency-estimation method based on an iterative midpoint search applied to the discrete Fourier transform (MS-DFT). The method is designed to reduce the sensitivity of classical interpolation-based estimators to fractional-bin offsets and noise variations.
Codrin Donciu, Marinel Costel Temneanu, Elena Serea   +2 more
openaire   +1 more source

Geometric interpretations of the Discrete Fourier Transform (DFT) [PDF]

, 1984
One, two, and three dimensional Discrete Fourier Transforms (DFT) and geometric interpretations of their periodicities are presented. These operators are examined for their relationship with the two sided, continuous Fourier transform.
Campbell, C. W.
core  

Artificial Intelligence for Advanced Functional Materials: Progress and Emerging Frontiers

Advanced Intelligent Systems, EarlyView.
Artificial intelligence is transforming the discovery of functional materials by linking synthesis, characterization, simulation, and design in unified workflows. Advances in machine learning, autonomous experimentation, and foundation models are accelerating innovation across energy, electronics, and biomedicine, while revealing new frontiers for ...
Cristiano Malica, Kostya S. Novoselov, Seongmin Kim, Yousung Jung, Silvana Botti, Miguel A. L. Marques, Tigany Zarrouk, Miguel A. Caro, Sanggyu Chong, Michele Ceriotti, Marivi Fernandez‐Serra, Sara Navarro‐Rodriguez, Aakash Ashok Naik, Janine George, Ömer Hasan Omar, Victor Trinquet, Gian‐Marco Rignanese, Andrey Ustyuzhanin, Sonia Conesa‐Boj, Juan Rojo, Minh‐Tuan Dau, Simon M.‐M. Dubois, Jean‐Christophe Charlier, Jose H. Garcia, Romain Gautier, Rachid Laref, Junfeng Qiao, Giovanni Pizzi, Nicola Marzari, Camilla Coletti, Antonio Rossi, Jan‐Lucas Uslu, Chiara Zanardi, Vincenzo Palermo, Wide Hogenhout, Natalia Konchakova, Peter Klein, Tejs Vegge, Stephan Roche   +38 more
wiley   +1 more source

Matrix-Vector Based Fast Fourier Transformations on SDR Architectures [PDF]

Advances in Radio Science, 2008
Today Discrete Fourier Transforms (DFTs) are applied in various radio standards based on OFDM (Orthogonal Frequency Division Multiplex). It is important to gain a fast computational speed for the DFT, which is usually achieved by using specialized Fast ...
Y. He, K. Hueske, J. Götze, E. Coersmeier   +3 more
doaj  

A Centered Dft-Based Discrete Fractional Fourier Transform And Its Application To Chirp Signal Parameter Estimation

, 2009
Publication in the conference proceedings of EUSIPCO, Glasgow, Scotland ...
Durak, Lütfiye, SERBES, Ahmet
openaire   +3 more sources

The discrete fractional Fourier transform [PDF]

, 1998
Cataloged from PDF version of article.Includes bibliographical references leaves 92-96.In this work, the discrete counterpart of the continuous Fractional Fourier Transform (FrFT) is proposed, discussed and consolidated.
Candan, Çağatay
core  

An analysis of pulsed ultrasonic transmit-receive systems for medical diagnostics

Archives of Acoustics, 2016
This paper presents a method for the calculation of the shape and size of pulses radiated and received by ultrasonic transmitting-receiving systems used in medical diagnostics.
Anna MARKIEWICZ
doaj