Graph fractional Fourier transform: A unified theory
T Alikaşifoğlu, B Kartal, A Koç - IEEE Transactions on Signal …, 2024 - ieeexplore.ieee.org
The fractional Fourier transform (FRFT) parametrically generalizes the Fourier transform (FT)
by a transform order, representing signals in intermediate time-frequency domains. The …
by a transform order, representing signals in intermediate time-frequency domains. The …
[PDF][PDF] Optical Ciphering Scheme for Cancellable Speaker Identification System.
W El Shafai, MA Elsayed, MA Rashwan… - Comput. Syst. Sci …, 2023 - cdn.techscience.cn
Most current security and authentication systems are based on personal biometrics. The
security problem is a major issue in the field of biometric systems. This is due to the use in …
security problem is a major issue in the field of biometric systems. This is due to the use in …
Optimal fractional Fourier filtering for graph signals
Graph signal processing has recently received considerable attention. Several concepts,
tools, and applications in signal processing such as filtering, transforming, and sampling …
tools, and applications in signal processing such as filtering, transforming, and sampling …
Joint time-vertex fractional Fourier transform
Graph signal processing (GSP) facilitates the analysis of high-dimensional data on non-
Euclidean domains by utilizing graph signals defined on graph vertices. In addition to static …
Euclidean domains by utilizing graph signals defined on graph vertices. In addition to static …
[PDF][PDF] 分数阶Fourier 变换在动目标检测和识别中的应用: 回顾和展望
陈小龙, 关键, 黄勇, 王国庆, 何友 - 信号处理, 2013 - signal.ejournal.org.cn
作为Fourier 变换的广义形式, 分数阶Fourier 变换(FRFT) 能够展示出信号从时域到频域的所有
变化特征, 通过对时频平面的旋转, FRFT 非常适合处理非平稳信号, 克服了传统时频分析方法受 …
变化特征, 通过对时频平面的旋转, FRFT 非常适合处理非平稳信号, 克服了传统时频分析方法受 …
Detection range of intercept sonar for CWFM signals
Stealth in military sonars applications may be ensured through the use of low power signals
making them difficult to intercept by the enemy. In recent years, silent sonar design has been …
making them difficult to intercept by the enemy. In recent years, silent sonar design has been …
Iterative interpolation for parameter estimation of LFM signal based on fractional Fourier transform
J Song, Y Wang, Y Liu - Circuits, Systems, and Signal Processing, 2013 - Springer
This study introduces two iterative interpolation algorithms for the parameter estimation of
linear frequency modulation (LFM) signal using fractional Fourier transform (FrFT). The …
linear frequency modulation (LFM) signal using fractional Fourier transform (FrFT). The …
Knowledge graph-based recommendation with knowledge noise reduction and data augmentation
Z Yang, L Li - Applied Intelligence, 2024 - Springer
In the field of recommendation algorithms, Knowledge Graphs are often utilized as
supplementary information to enhance recommendation accuracy. However, while applying …
supplementary information to enhance recommendation accuracy. However, while applying …
Radar matched filtering using the fractional Fourier transform
SA Elgamel, C Clemente, JJ Soraghan - 2010 - IET
A matched filter is the optimal linear filter for maximizing the signal to noise ratio (SNR) in the
presence of additive noise. Matched filters are commonly used in radar systems where the …
presence of additive noise. Matched filters are commonly used in radar systems where the …
Performance analysis of fractional Fourier domain beam-forming methods for sensor arrays
G Sreekumar, L Mary, A Unnikrishnan - Smart science, 2019 - Taylor & Francis
The problem of estimating the direction of arrival (DoA) of multiple far-field moving targets,
producing broad-banded chirp signals, in both active and passive mode of operation is …
producing broad-banded chirp signals, in both active and passive mode of operation is …