Title :
Millimeter wave imaging technologies
Author :
Mizuno, Koji ; Watabe, K. ; Bae, J. ; Nozokido, T. ; Sugawara, S.
Author_Institution :
RIKEN, Inst. of Phys. & Chem. Res., Saitama, Japan
Abstract :
Active and passive millimeter wave imaging are investigated here. A neural network is successfully implemented in a 60 GHz active-mode imaging system in order to recognize objects which appear distorted under coherent millimeter wave illumination. Atmospheric effects on passive imaging (radiometry) are evaluated as well. Also, a novel type of scanning near-field mm-wave microscopy using a metal slit as a scanning probe is proposed, and demonstrated with an image resolution better than λ/20
Keywords :
image reconstruction; image resolution; millimetre wave antenna arrays; millimetre wave imaging; neural nets; radiometry; 60 GHz; active imaging; atmospheric effects; coherent millimeter wave illumination; image resolution; millimeter wave imaging technologies; passive imaging; radiometry; scanning near-field mm-wave microscopy; Antenna arrays; Atmospheric waves; Lenses; Millimeter wave communication; Millimeter wave radar; Millimeter wave technology; Optical imaging; Optical scattering; Radar imaging; Sensor arrays;
Conference_Titel :
Millimeter Waves, 1997 Topical Symposium on
Conference_Location :
Kanagawa
Print_ISBN :
0-7803-3887-1
DOI :
10.1109/TSMW.1997.702492
