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Polarimetric millimetre wave SAR for precision farming applications

 
: Essen, H.; Nüßler, D.; Krebs, C.; Schimpf, H.; Johannes, W.; Wahlen, A.

:

Neale, C.M.U. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Remote sensing for agriculture, ecosystems, and hydrology XII : 20 - 22 September 2010, Toulouse, France; Papers presented during the Conference on Remote Sensing for Agriculture, Ecosystems, and Hydrology XI; Part of the 17th International Symposium on Remote Sensing
Bellingham, WA: SPIE, 2010 (Proceedings of SPIE 7824)
ISBN: 978-0-8194-8341-6
Paper 78241Q
Conference on Remote Sensing for Agriculture, Ecosystems, and Hydrology <12, 2010, Toulouse>
International Symposium on Remote Sensing <17, 2010, Toulouse>
Englisch
Konferenzbeitrag
Fraunhofer FHR

Abstract
A high resolution imaging millimetre wave SAR delivers three key parameters important for precision farming applications, namely range, reflectivity and polarization state. The reflectivity gives information upon the type of crop and its humidity. Especially in the millimeter wave region young growing green plants exhibit a considerably higher reflectivity than older, dry leaves. Dependent on the transmit-receive polarization also indications are given upon the humidity of the underlying soil. Polarimetry also allows to judge the ripeness of the grain as the geometry of the ear is changing during the ripening process.

: http://publica.fraunhofer.de/dokumente/N-188448.html