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Angular Superresolution Based on A Priori Information
Author(s) -
Lagovsky B.,
Samokhin A.,
Shestopalov Y.
Publication year - 2021
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/2020rs007100
Subject(s) - superresolution , a priori and a posteriori , limiting , inverse problem , computer science , basis (linear algebra) , angular resolution (graph drawing) , algorithm , noise (video) , mathematics , image (mathematics) , artificial intelligence , mathematical analysis , mechanical engineering , philosophy , geometry , epistemology , combinatorics , engineering
The results of theoretical studies and mathematical modeling indicate the possibility of obtaining the angular superresolution and its limits by using algebraic methods of imaging. The necessary algorithms are created on the basis of solution to inverse problems. The limiting levels of the achieved angular superresolution are found depending on the signal‐to‐noise ratio for objects of various types. A number of specific advantages of the method are shown as applied to the solution of two‐dimensional problems. Capabilities of the method are illustrated by examples. High performance of the proposed approach allows one to use it in real time when scanning and tracking targets.