Title :
Calibration of HUT polarimetric radiometer
Author :
Lahtinen, Janne ; Hallikainen, Martti
Author_Institution :
Lab. of Space Technol., Helsinki Univ. of Technol., Espoo, Finland
Abstract :
The Helsinki University of Technology polarimetric radiometer calibration system is described. Calibration is based on a metal wire grid polarizer and two absorption loads at different temperatures. The characteristics of the grid and the formulae for calibration are presented. The maximum error due calibration is calculated
Keywords :
atmospheric measuring apparatus; calibration; microwave measurement; radiometers; remote sensing; 6.8 to 94 GHz; HUT polarimetric radiometer; Helsinki University of Technology polarimetric radiometer calibration system; absorption loads; maximum error; metal wire grid polarizer; temperatures; Brightness temperature; Calibration; Corrosion; Electromagnetic wave absorption; Laboratories; Microwave radiometry; Polarization; Space technology; Stokes parameters; Wire;
Conference_Titel :
Geoscience and Remote Sensing Symposium Proceedings, 1998. IGARSS '98. 1998 IEEE International
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-4403-0
DOI :
10.1109/IGARSS.1998.702912
