✦ LIBER ✦

Superhigh image resolution for microwave imaging

✍ Scribed by Hsueh-Jyh Li; Ta-Yung Liu; Sheng-Hui Yang

Publisher: John Wiley and Sons
Year: 1990
Tongue: English
Weight: 836 KB
Volume: 2
Category: Article
ISSN: 0899-9457
DOI: 10.1002/ima.1850020105

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Algorithms for extrapolating the scattered field along the frequency direction and the azimuthal direction are developed and analyzed. Their effects on the image resolution for polar format processing and rectangular format processing are discussed. Simulation and experimental results show that extrapolation along the frequency direction does increase the range resolution. While extrapolation along the azimuthal direction improves the cross‐range resolution for small angle imaging, it does not improve image resolution of complex‐shaped objects for wide angle imaging. Both range and cross‐range resolutions can be improved simultaneously for small angle imaging using rectangular format processing if the angular interval and the resolution cells are suitably chosen. A promising application for the algorithms developed is in microwave dynamic imaging.

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