Open AccessHigh resolution non-iterative aperture synthesis
Author(s) -
Jeffrey Read Kraczek,
Paul McManamon,
Edward Watson
Publication year - 2016
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.006229
Subject(s) - optics , aperture (computer memory) , tilt (camera) , synthetic aperture radar , aperture synthesis , optical transfer function , resolution (logic) , piston (optics) , computer science , physics , wavefront , interferometry , mathematics , acoustics , computer vision , artificial intelligence , geometry
The maximum resolution of a multiple-input multiple-output (MIMO) imaging system is determined by the size of the synthetic aperture. The synthetic aperture is determined by a coordinate shift using the relative positions of the illuminators and receive apertures. Previous methods have shown non-iterative phasing for multiple illuminators with a single receive aperture for intra-aperture synthesis. This work shows non-iterative phasing with both multiple illuminators and multiple receive apertures for inter-aperture synthesis. Simulated results show that piston, tip, and tilt can be calculated using inter-aperture phasing after intra-aperture phasing has been performed. Use of a fourth illuminator for increased resolution is shown. The modulation transfer function (MTF) is used to quantitatively judge increased resolution.