A solution for self-calibrating a large distorted phased array using subarray processing

Author

Kang, Bongsoon ; Steinberg, Bernard D. ; Kesler, Stanislav B.

Volume

39

Issue

3

fYear

1991

fDate

3/1/1991 12:00:00 AM

Firstpage

291

Lastpage

298

Abstract

Two subarray procedures are added to the multiple scatterer algorithm (MSA) for the purpose of self-calibrating a large distorted phased array. Depending on whether or not overlapping between adjacent subarrays exists, they are called the multiple scatterer algorithm with subarray processing (MSA-S) or the multiple scatterer algorithm with overlapping subarray processing (MSA-OS). These are tested using experimental microwave echoes from an industrial site and a housing development area. The data sets are obtained using an X-band (3-cm), 83-m phased array. MSA-OS can synthesize a specular-like beamformer using the echoes from three low-quality beamformers, each of which is incapable of phase-cohering the array by itself. MSA is found to be superior to the more basic dominant scatterer algorithm (DSA), and MSA-OS is found to perform the best

Keywords

antenna phased arrays; calibration; microwave imaging; 3 cm; 9.6 GHz; X-band; housing development area; industrial site; large distorted phased array; microwave echoes; microwave imaging; multiple scatterer algorithm; self calibration; specular-like beamformer; subarray processing; Cameras; Helium; High-resolution imaging; Image resolution; Instruments; Microwave antenna arrays; Phase distortion; Phased arrays; Radar scattering; Testing;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.76324

Filename

76324