Decimated Prony's method for stable super-resolution

R Katz, N Diab, D Batenkov - IEEE Signal Processing Letters, 2023 - ieeexplore.ieee.org
We study recovery of amplitudes and nodes of a finite impulse train from noisy frequency
samples. This problem is known as super-resolution under sparsity constraints and has …

Regular sparse array direction of arrival estimation in one dimension

F Knaepkens, A Cuyt, WS Lee… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Traditionally, regularly spaced antenna arrays follow the spatial Nyquist criterion to
guarantee an unambiguous analysis. We present a novel technique that makes use of two …

A convex approach to superresolution and regularization of lines in images

K Polisano, L Condat, M Clausel, V Perrier - SIAM Journal on Imaging …, 2019 - SIAM
We present a new convex formulation for the problem of recovering lines in degraded
images. Following the recent paradigm of superresolution, we formulate a dedicated atomic …

Separation-free spectral super-resolution via convex optimization

Z Yang, YL Mo, Z Xu - Applied and Computational Harmonic Analysis, 2024 - Elsevier
Atomic norm methods have recently been proposed for spectral super-resolution with
flexibility in dealing with missing data and miscellaneous noises. A notorious drawback of …

Characterising the electric field ripple in reflector antennas using sub-sampled exponential analysis

RM Weideman, A Cuyt… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Reflector antennas often exhibit frequency ripples in key performance metrics, including
aperture efficiency and antenna noise temperature. These ripples stem from corresponding …

Characterising the frequency ripple in antenna noise temperature using exponential analysis

RM Weideman, A Cuyt… - … on Electromagnetics in …, 2023 - ieeexplore.ieee.org
This paper presents a method for characterising the ripple observed in the antenna noise
temperature of reflector systems as a function of operating frequency. The ripple, which is …

CAD-based design optimization of four-bar mechanisms: an emergency ventilator case study

A Ben Yahya, N Van Oosterwyck, F Knaepkens… - Designs, 2023 - mdpi.com
The design optimization of mechanisms is promising as it results in more energy-efficient
machines without compromising performance. However, machine builders do not apply …

Sparse Linear Array Synthesis Using Exponential Analysis

R Sengupta, A Cuyt, DS Prinsloo… - … IEEE Conference on …, 2023 - ieeexplore.ieee.org
This paper presents an exponential analysis technique for synthesizing a sparse non-
uniform linear array using equidistant samples of the array factor of a dense uniform linear …

Decomposing textures using exponential analysis

Y Hou, A Cuyt, W Lee… - ICASSP 2021-2021 IEEE …, 2021 - ieeexplore.ieee.org
Decomposition is integral to most image processing algorithms and often required in texture
analysis. We present a new approach using a recent 2-dimensional exponential analysis …

Selecting Optimal Sampling Rate for Stable Super-Resolution

N Diab - arxiv preprint arxiv:2502.06673, 2025 - arxiv.org
We investigate the recovery of nodes and amplitudes from noisy frequency samples in spike
train signals, also known as the super-resolution (SR) problem. When the node separation …