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Space-Based Sub-THz ISAR for Space Situational Awareness - Laboratory Validation.

Authors :
Marchetti, Emidio
Stove, Andrew G.
Hoare, Edward G.
Cherniakov, Mikhail
Blacknell, David
Gashinova, Marina
Source :
IEEE Transactions on Aerospace & Electronic Systems. Oct2022, Vol. 58 Issue 5, p4409-4422. 14p.
Publication Year :
2022

Abstract

The advantages of sub-terahertz technology (sub-THz, 200–700 GHz) have already been advanced for imaging and recognition of a space object's state from a space-based sensor using inverse synthetic aperture radar (ISAR). The technology benefits from wide absolute signal bandwidths, giving high range resolution and from enhanced sensitivity to surface texture. An experimental validation of such a system in controlled laboratory conditions is presented. Possible image formation methods are proposed and evaluated experimentally. Images of real parts of satellites have been produced at sub-THz frequencies and compared to lower frequency images. Other results include sub-THz bistatic ISAR, and sub-THz cross-polarized images which highlight the scattering from rough surfaces while attenuating the very bright scatterers seen from conventional monostatic images. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00189251
Volume :
58
Issue :
5
Database :
Academic Search Index
Journal :
IEEE Transactions on Aerospace & Electronic Systems
Publication Type :
Academic Journal
Accession number :
160621031
Full Text :
https://doi.org/10.1109/TAES.2022.3160985