Millimeter wave imaging with engineered point spread functions

被引：7

作者：

Mait, Joseph N. ^{[1
]}

Martin, Richard D. ^{[2
]}

Schuetz, Christopher A. ^{[2
]}

Prather, Dennis W. ^{[3
]}

机构：

[1] USA, Res Lab, Adelphi, MD 20783 USA

[2] Phase Sensit Innovat, Newark, DE 19711 USA

[3] Univ Delaware, Dept Elect & Comp Engn, Newark, DE 19716 USA

来源：

OPTICAL ENGINEERING | 2012年 / 51卷 / 09期

关键词：

imaging systems; phase-only filters; point spread functions; millimeter waves; PUPIL-FUNCTION DESIGN; ARRAYS;

D O I：

10.1117/1.OE.51.9.091606

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate experimentally the ability to shape the point spread function of a distributed-aperture millimeter-wave imaging system by modifying its aperture phase. We consider distributions on a regular hexagonal array and a nonredundant array. We also show how to exploit this capability to perform low-resolution analog image processing. A preliminary investigation of system performance reveals nonuniformity in amplitude response across the array is a major contributor to deviations from predicted point spread functions (PSFs). (C) 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.OE.51.9.091606]

引用

页数：9

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