Concept
Least-squares spectral analysis
Publications associées (295)
Reconstruction of 3D scattered data via radial basis functions by efficient and robust techniques
We propose new algorithms to overcome two of the most constraining limitations of surface reconstruction methods in use. In particular, we focus on the large amount of data characterizing standard acquisitions by scanner and the noise intrinsically introdu ...
Elsevier Science Bv2017Robust Distributed Estimation by Networked Agents
Diffusion adaptive networks tasked with solving estimation problems have attracted attention in recent years due to their reliability, scalability, resource efficiency, and resilience to node and link failure. Diffusion adaptation strategies that are based ...
2017A Functional Framework for Enhanced Ultrasound Imaging
Ultrasound systems are cheap, portable, and fast, which have become impressively popular over the last decades. State-of art imaging is however known to be sub-optimal. Most attempts to improve it formulate the problem on a discrete spatial grid and suffer ...
2017Coexistence of Drift Waves and D'Angelo Modes at Different Position and Frequency in Linear Plasma Device
Minh Quang Tran, Nathan Dupertuis
Experimental plasma discharges in linear PANTA device are studied by Mach probe measurements, providing floating potential, ion saturation current, and parallel flow velocity time evolution, at different radii of the device. Spectral analysis indicates tha ...
Japan Soc Plasma Science & Nuclear Fusion Research2017An Adaptive Sublinear-Time Block Sparse Fourier Transform
Volkan Cevher, Mikhail Kapralov, Jonathan Mark Scarlett, Amir Zandieh
The problem of approximately computing the dominant Fourier coefficients of a vector quickly, and using few samples in time domain, is known as the Sparse Fourier Transform (sparse FFT) problem. A long line of work on the sparse FFT has resulted in ...
2017Denoising radio interferometric images by subspace clustering
Paul Hurley, Matthieu Martin Jean-André Simeoni, Nezihe Merve Gürel
Radio interferometry usually compensates for high levels of noise in sensor/antenna electronics by throwing data and energy at the problem: observe longer, then store and process it all. Furthermore, only the end image is cleaned, reducing flexibility subs ...
2017A Novel Measure of Instantaneous Baroreflex Sensitivity
Jean-Marc Vesin, Sasan Yazdani, Miljan Petrovic
Various time- and frequency-based approaches have been proposed to measure baroreflex sensitivity. All these methods are block-based ones. This study proposes a novel instantaneous measure of baroreflex sensitivity that enables the investigation of frequen ...
2017