Results 1 to 10 of about 1,138 (212)

Discrete Signal Processing on Graphs: Sampling Theory [PDF]

open access: yesIEEE Transactions on Signal Processing, 2015
We propose a sampling theory for signals that are supported on either directed or undirected graphs. The theory follows the same paradigm as classical sampling theory. We show that the perfect recovery is possible for graph signals bandlimited under the graph Fourier transform, and the sampled signal coefficients form a new graph signal, whose ...
Siheng Chen   +2 more
exaly   +3 more sources

Rethinking sketching as sampling: A graph signal processing approach

open access: yesSignal Processing, 2020
Submitted to Elsevier Signal ...
Fernando Gama   +2 more
exaly   +4 more sources

Sampling and Uniqueness Sets in Graphon Signal Processing

open access: yesIEEE Transactions on Signal Processing
In this work, we study the properties of sampling sets on families of large graphs by leveraging the theory of graphons and graph limits. To this end, we extend to graphon signals the notion of removable and uniqueness sets, which was developed originally for the analysis of signals on graphs.
Alejandro Ribeiro   +1 more
exaly   +3 more sources

Adaptive Graph Signal Processing: Algorithms and Optimal Sampling Strategies

open access: yesIEEE Transactions on Signal Processing, 2018
Submitted to IEEE Transactions on Signal Processing, September ...
Geert Leus   +2 more
exaly   +7 more sources

Quadrature Demodulation Method for Resolver Signal Processing Under Different Sampling Rate

open access: yesIEEE Access, 2022
Resolvers are widely used as position sensors to obtain angle information. The resolver requires the excitation signal and its amplitude is modulated by the rotor position.
Pooreum Jang   +3 more
doaj   +1 more source

Photonic Signal Processing in Phase-Coded Lidar System

open access: yesPhotonics, 2023
The next generation of lidar systems needs to adapt to variable environments with broadened bandwidth for increased resolution. Due to their digital components, conventional lidar systems, especially imaging lidar systems, suffer from limited detector ...
Shuyu Chen   +4 more
doaj   +1 more source

An Under-Sampling Array Signal Processing Method Based on Improved Hadamard Matrix

open access: yesApplied Sciences, 2022
The compressive sensing method is an effective way of under-sampling array signal processing, and the measurement matrix is a key technology of compressive sensing processing, which is of decisive significance to improve the performance of under-sampling
Tongjing Sun   +4 more
doaj   +1 more source

Overview of Signal Processing Problems in Power Electronic Control Circuits

open access: yesEnergies, 2023
This paper examines various aspects related to digital signal processing in digital control circuits used in power electronics. The discussion focuses on several common issues, including the sampling rate of signals (including phenomena such as aliasing ...
Krzysztof Sozański
doaj   +1 more source

Highlighting Problems Occurring in Analysis of Critical Sampling of Cosinusoidal Signal [PDF]

open access: yesTransNav, 2020
When the sampling of an analog signal uses the sampling rate equal to exactly twice the value of a maximal frequency occurring in the signal spectrum, it is called a critical one.
Andrzej Borys, Przemyslaw Korohoda
doaj   +1 more source

Coprime sampling for nonstationary signal in radar signal processing [PDF]

open access: yesEURASIP Journal on Wireless Communications and Networking, 2013
Estimating the spectrogram of non-stationary signal relates to many important applications in radar signal processing. In recent years, coprime sampling and array attract attention for their potential of sparse sensing with derivative to estimate autocorrelation coefficients with all lags, which could in turn calculate the power spectrum density.
Qiong Wu 0006, Qilian Liang
openaire   +1 more source

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