Results 31 to 40 of about 3,627 (192)
Sparse representation-based DOA estimation of coherent wideband LFM signals in FRFT domain
EURASIP Journal on Wireless Communications and Networking, 2017 In this paper, the method of direction-of-arrival (DOA) estimation for wideband signals based on sparse representation of FRFT domain is proposed by using the excellent convergence of FRFT to LFM signals.
Bo Li, Xiuhong Wang
doaj +1 more source
Design and Detection of Multilinear Chirp Signals for Underwater Acoustic Sensor Networks
International Journal of Distributed Sensor Networks, 2015 In Underwater Acoustic Sensor Networks (UW-ASNs), some key problems have attracted more and more attention, including power consumption, performance of multiple access, and complexity of node.
En Cheng, Shengli Chen, Fei Yuan
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A new fractional Fourier transform based monopulse tracking radar processor [PDF]
, 2010 Conventional monopulse radar processors are used to track a target that appears in the look direction beam width. The distortion produced when additional targets appear in the look direction beam width can cause severe erroneous outcomes from the ...
Elgamel, Sherif A.E.H., Soraghan, J.J.
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Enhanced Fast Fractional Fourier Transform (FRFT) Scheme Based on Closed Newton-Cotes Rules
AxiomsThe paper presents an enhanced numerical framework for computing the one-dimensional fast Fractional Fourier Transform (FRFT) by integrating closed-form Composite Newton-Cotes quadrature rules.
Aubain Nzokem +2 more
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Peak to average power ratio reduction in NC–OFDM systems [PDF]
, 2015 Non contiguous orthogonal frequency division multiplexing (NC-OFDM) is an efficient and adaptable multicarrier modulation scheme to be used in cognitive radio communications.
Ghafoor, Abdul +2 more
core +1 more source
Fractional Fourier transform of Airyprime beams
Results in PhysicsAnalytical expressions of the electric field, the centriod, the beam half width, and the linear momentum of the fractional Fourier transform (FrFT) of an Airyprime beam are derived, respectively. The relation between the centriods or the beam half widths
Jian He +5 more
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A New Method of Fault Localization for 500 kV Transmission Lines Based on FRFT-SVD and Curve Fitting
Energies, 2023 The paper presents the Fractional Fourier Transform-Singular Value Decomposition (FRFT-SVD) method for the localization of various power system faults in a 200 km long, 500 kV Egyptian transmission line using sent end-line current signals.
Mohamed H. Saad +2 more
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A Novel Radar Detection Method for Sensing Tiny and Maneuvering Insect Migrants
Remote Sensing, 2020 The use of radar to monitor insect migration is of great significance for pest control and biological migration mechanism research. However, migrating insects usually have small radar-cross-section (RCS) and are accompanied by maneuvering.
Rui Wang +4 more
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Continuous Time Frequency Domain Analysis of Ф-OTDＲ Nonstationary Signals
Journal of Harbin University of Science and Technology, 2021 Most of the natural vibration signals are stationary and modulated by the interference light signal of the distributed optical fiber vibration sensing system.
XU Tao, LI Li
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IET Signal Processing, Volume 2026, Issue 1, 2026.The burst‐like and high‐amplitude characteristics of impulsive noise, which markedly differ from those of Gaussian noise, render methods based on the Gaussian assumption unable to accurately characterize signals under impulsive noise. Moreover, when dealing with multicomponent signal, existing impulsive noise suppression methods inevitably introduce ...
Weiwei Shang +3 more
wiley +1 more source