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a proof of the woodward-lawson sampling method for a finite linear arrayAn extension of the continuous aperture Woodward-Lawson sampling theorem has been developed for a finite linear array of equidistant identical elements with arbitrary excitations. It is shown that by sampling the array factor at a finite number of specified points in the far field, the exact array factor over all space can be efficiently reconstructed in closed form. The specified sample points lie in real space and hence are measurable provided that the interelement spacing is greater than approximately one half of a wavelength. This paper provides insight as to why the length parameter used in the sampling formulas for discrete arrays is larger than the physical span of the lattice points in contrast with the continuous aperture case where the length parameter is precisely the physical aperture length.
Document ID
19930071157
Document Type
Reprint (Version printed in journal)
Authors
Somers, Gary A.
(Ohio State Univ. Columbus, United States)
Date Acquired
August 16, 2013
Publication Date
August 1, 1993
Publication Information
Publication: Radio Science
Volume: 28
Issue: 4
ISSN: 0048-6604
Subject Category
PHYSICS (GENERAL)
Funding Number(s)
CONTRACT_GRANT: N00014-89-J-1007
Distribution Limits
Public
Copyright
Other