Calibration Home Base

Calibration Home Base

The Calibration Home Base (CHB) is an optical laboratory for the calibration of airborne hyperspectral sensors and field spectrometers. It was partly funded by ESA to establish a calibration facility for the airborne imaging spectrometer APEX, but is used for other optical sensors as well. It is the only facility in Europe which allows precise characterization of the radiometric, geometric and spectral properties of bulky and heavy instruments up to 350 kg in a wide spectral range from 380 nm to 14 µm. Radiance sources traceable to national standard (PTB) are used for radiometric calibration. In particular for instruments with large aperture or large field of view, a large integrating sphere is available which provides very homogeneous radiance for an area of 55 x 40 cm².

Technical details of the CHB lab infrastructure can be found in the CHB flyer.

zum Bild CHB
1 = optical bench, 2 = folding mirror, 3 = large integrating sphere, 4 = small integrating sphere, 5 = rack with power supplies for 18 lamps of No. 3, 6 = control electronics for No. 2, 7 = monochromator, 8 = mechanical interface, 9 = sensor (ROSIS).


Karim Lenhard
German Aerospace Center (DLR)

Remote Sensing Technology Institute
, Experimental Methods
Tel: +49 8153 28-2702

Fax: +49 8153 28-1337

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CHB Flyer (