Blackbody calibration sources of high accuracy for a spaceborne infrared instrument: The Along Track Scanning Radiometer

被引：44

作者：

Mason, IM

Sheather, PH

Bowles, JA

Davies, G

机构：

[1] Mullard Space Science Laboratory, Department of Space and Climate Physics, University College London, Dorking, Surrey, RH5 6NT, Holmbury St. Mary

[2] Vega Group PLC, Harpenden, Hertfordshire, AL5 4SJ

来源：

APPLIED OPTICS | 1996年 / 35卷 / 04期

关键词：

blackbody; calibration source; infrared; radiometer; remote sensing; space; satellite; Along Track Scanning Radiometer;

D O I：

10.1364/AO.35.000629

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe the two 140-mm-aperture simulated blackbody sources used for the on-board calibration of the Along Track Scanning Radiometer, a spaceborne thermal infrared instrument for the accurate remote sensing of sea surface temperature, in operation since 1991. The design of these spaceborne sources, which operate at approximate to -10 degrees C and approximate to +30 degrees C, allows them to meet their unprecedented accuracy goal, namely a 3 sigma uncertainty in their brightness temperature of <0.1 K for the whole mission. This performance is empirically demonstrated in the laboratory and in flight by long-term temperature readout tests, temperature uniformity measurements, and direct emissivity measurements. (C) 1996 Optical Society of America

引用

页码：629 / 639

页数：11