Discrete Signal Processing on Graphs: Sampling Theory [PDF]
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 ...
Rohan Varma+3 more
openaire +5 more sources
Event-Based Sensing and Signal Processing in the Visual, Auditory, and Olfactory Domain: A Review
The nervous systems converts the physical quantities sensed by its primary receptors into trains of events that are then processed in the brain. The unmatched efficiency in information processing has long inspired engineers to seek brain-like approaches ...
Mohammad-Hassan Tayarani-Najaran+1 more
doaj +2 more sources
Adaptive importance sampling in signal processing [PDF]
In Bayesian signal processing, all the information about the unknowns of interest is contained in their posterior distributions. The unknowns can be parameters of a model, or a model and its parameters. In many important problems, these distributions are impossible to obtain in analytical form.
Bugallo, Mónica F.+2 more
openaire +3 more sources
Adaptive Graph Signal Processing: Algorithms and Optimal Sampling Strategies [PDF]
Submitted to IEEE Transactions on Signal Processing, September ...
Paolo Di Lorenzo+4 more
openaire +6 more sources
Graph Signal Processing: Modulation, Convolution, and Sampling
To analyze data supported by arbitrary graphs G, DSP has been extended to Graph Signal Processing (GSP) by redefining traditional DSP concepts like shift, filtering, and Fourier transform among others. This paper revisits modulation, convolution, and sampling of graph signals as appropriate natural extensions of the corresponding DSP concepts.
J. Y. Shi, José M. F. Moura
openalex +4 more sources
Signal Driven Sampling and Filtering : A Promising Approach for Time Varying Signals Processing [PDF]
{"references": ["J.W. Mark and T.D. Todd, \"A nonuniform sampling ap-proach to data\ncompression\", IEEE Transactions on Communica-tions, vol. COM-29,\npp. 24-32, January 1981.", "E. Allier, G. Sicard, L. Fesquet and M. Renaudin, \"A new class of asynchronous\nA/D converters based on time quantization\", ASYNC'03,\npp.197-205, May 2003.", "F ...
Saeed Mian Qaisar+2 more
openalex +3 more sources
Graph Signal Processing: Dualizing GSP Sampling in the Vertex and Spectral Domains [PDF]
Vertex based and spectral based GSP sampling has been studied recently. The literature recognizes that methods in one domain do not have a counterpart in the other domain.
John Shi, J. Moura
semanticscholar +1 more source
Pulse-Doppler Signal Processing with Quadrature Compressive Sampling [PDF]
Quadrature compressive sampling (QuadCS) is a recently introduced sub-Nyquist sampling scheme for effective acquisition of inphase and quadrature (I/Q) components of sparse radio frequency signals.
Chao Liu+3 more
openalex +3 more sources
Grid-Graph Signal Processing (Grid-GSP): A Graph Signal Processing Framework for the Power Grid [PDF]
The underlying theme of this paper is to explore the various facets of power systems data through the lens of graph signal processing (GSP), laying down the foundations of the Grid-GSP framework.
Raksha Ramakrishna, A. Scaglione
semanticscholar +1 more source
Localized nonlinear functional equations and two sampling problems in signal processing
Let 1 ≤ p ≤ ∞. In this paper, we consider solving a nonlinear functional equation f (x) = y, where x, y belong to ℓpand f has continuous bounded gradient in an inverse-closed subalgebra of ℬ (ℓ2), the Banach algebra of all bounded linear operators on the
Qiyu Sun
openalex +3 more sources