Compact real-time (video rate) passive millimetre-wave imager

被引：34

作者：

Appleby, R ^{[1
]}

Anderton, RN ^{[1
]}

Price, S ^{[1
]}

Salmon, NA ^{[1
]}

Sinclair, GN ^{[1
]}

Borrill, JR ^{[1
]}

Coward, PR ^{[1
]}

Papakosta, P ^{[1
]}

Lettington, AH ^{[1
]}

Robertson, DA ^{[1
]}

机构：

[1] Def Evaluat & Res Agcy, Malvern WR14 3PS, Worcs, England

来源：

PASSIVE MILLIMETER-WAVE IMAGING TECHNOLOGY III | 1999年 / 3703卷

关键词：

passive millimetre wave; imaging; realtime; mechanical scanning; radiometer;

D O I：

10.1117/12.353003

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper describes a novel real time mechanically scanned passive millimetre wave imager. This imager produces a field of view of 40 degrees x20 degrees with diffraction limited performance and a 25Hz frame update rate. It is relatively inexpensive because the scene is imaged using 32 direct detection receivers with a frequency of operation from 28-33GHz. The compact antenna uses polarisation techniques to fold the beam and is constructed from readily available low cost materials.

引用

页码：13 / 19

页数：7