augmented lagrangian method 1gradient descent optimization 1image reconstruction 1low-frequency radio 1lunar interferometry 1
From the 1 of 2 linked papers with an AI index.
2 papers
astro-ph.IM2026
Synthesis imaging with a lunar orbit array: III. Augmented lagrangian Multiplier Imaging using Gradient descent Optimization (AMIGO)
Meng Zhou, Furen Deng, Yidong Xu +1
The paper introduces AMIGO, an imaging algorithm that combines mini‑batch gradient descent with an augmented Lagrangian multiplier framework to efficiently reconstruct all‑sky radi…
astro-ph.IM2026
Synthesis imaging with a lunar orbit array: II. Impacts of instrument-induced phase errors
Meng Zhou, Furen Deng, Yidong Xu +2
A lunar orbit interferometer array suffers from a number of systematics. Beyond systematics induced by the imaging algorithm itself and thermal noise considered in Paper I, phase e…