Vollpolarimetrische Helligkeitstemperatur-Verteilungen von natuerlichen und kuenstlichen Objekten bei einer Frequenz von 90 GHz

The aim of this work is to make fully polarimetric thermal radiation of real objects accessible to possible applications. First, realistic orders of magnitude of fully polarimetric effects in the Stokes vector of emissivity are studied by some scattering models as for example periodic surfaces and bianisotropic media. Moreover, the design, construction and calibration of a fully polarimetric, quasioptical radiometric measurement system for high resolution measurements of real objects at 90 GHz is considered. With it, results for the Stokes vector in dependence of the aspect angle were obtained for a periodic plastic surface, a plate of wood from a fir, and an anisotropic cloth as well as for two dimensional measurements of several objects including anti-personal-mines and a car. Together with results of calculations, this leads to some starting points of new applications for the analysis of the complete polarimetric information in respect of touchless material control, object classification and terrain models. (orig.)SIGLEAvailable from TIB Hannover: RN 437(98-19) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman