Superhigh image resolution for microwave imaging
作者:
Hsueh‐Jyh Li,
Ta‐Yung Liu,
Sheng‐Hui Yang,
期刊:
International Journal of Imaging Systems and Technology
(WILEY Available online 1990)
卷期:
Volume 2,
issue 1
页码: 37-46
ISSN:0899-9457
年代: 1990
DOI:10.1002/ima.1850020105
出版商: John Wiley&Sons, Inc.
数据来源: WILEY
摘要:
AbstractAlgorithms 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 im
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