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A Mach–Zehnder nonzero order joint transform correlator for aircraft pattern recognition
Author(s) -
Lee Chungcheng,
Chen Chulung
Publication year - 2006
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.21623
Subject(s) - mach number , plane (geometry) , distortion (music) , joint (building) , optical correlator , zero order , microwave , amplitude , computer science , physics , optics , engineering , mathematics , fourier transform , telecommunications , mathematical analysis , aerospace engineering , geometry , first order , structural engineering , amplifier , bandwidth (computing)
A Mach–Zehnder device is utilized in a nonzero‐order joint‐transform correlator system for aircraft pattern recognition. The Stokes relations, which involve the amplitudes of reflected and transmitted parts of a plane wave incident on a plane‐refracting surface, are cleverly utilized. The proposed method can directly remove the large zero‐order term in one step. The correlator also shows the advantage of the ability to detect distortion invariance. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 1290–1293, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21623