NDLI: On The Role Of Adaptive Beamforming And Modern Spectral Estimation In High Resolution Microwave Imaging*

Content Provider	IEEE Xplore Digital Library
Author	Steinberg, B.D. Chaolun Jin
Copyright Year	1988
Description	Author affiliation: University of Pennsylvania (Steinberg, B.D.)
Abstract	Modern spectral estimation techniques offer higher angular resolution than Fourier-based methods in microwave imaging with large phased arrays. Two problems limit the applicability of these methods. Both are solved bv data-adaptive feedback control of the weight vector of the array. The method is adaptive beamforming, developed for the radio camera. The problems are 1) intrinsic mechanical and electrical distortion in large systems of antennas and 2) the lack of spatial stationarity in the radiation field from near-field targets. The theory and experiments with aircraft imagery at X-band (3-cm wavelength) are presented.
Starting Page	246
Ending Page	249
File Size	336375
Page Count	4
File Format	PDF
ISSN	10586393
DOI	10.1109/ACSSC.1988.753992
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1988-10-31
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Array signal processing Image resolution Phased arrays Spatial resolution Phase distortion Microwave theory and techniques Microwave imaging High-resolution imaging Signal resolution Apertures
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Signal Processing

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On The Role Of Adaptive Beamforming And Modern Spectral Estimation In High Resolution Microwave Imaging*