A regularization-free approach for high-resolution spectral imaging based on the Lucy–Richardson–Rosen method
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Modern Optics"
DOI: 10.1080/09500340.2025.2519796
Abstract: Grating-based imaging spectrometers offer high spectral resolution and are widely used in solar thermodynamic studies. However, wavefront aberrations degrade both spectral and spatial resolution, causing overlapping and blurring of slit images. To address this, we… read more here.
Keywords: method; resolution; richardson rosen; regularization free ... See more keywords
Non-Uniform Array and Frequency Spacing for Regularization-Free Gridless DOA
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Transactions on Signal Processing"
DOI: 10.1109/tsp.2024.3386018
Abstract: Gridless direction-of-arrival (DOA) estimation with multiple frequencies can be applied in acoustics source localization problems. We formulate this as an atomic norm minimization (ANM) problem and derive an equivalent regularization-free semi-definite program (SDP) thereby avoiding… read more here.
Keywords: uniform array; non uniform; doa; regularization free ... See more keywords