Title :
A new calibration technique for ground-based microwave radiometer
Author :
Hengmin Han ; Tingting Shu ; Lixin Guo ; Zhenwei Zhao ; Jiangman Li ; Le-Ke Lin
Author_Institution :
Sch. of Sci., Xidian Univ., Xi´an, China
Abstract :
A new calibration method for ground-based radiometer is proposed herein. In this method, the relationship between atmosphere opacity and viewing angle is used as a constraint for deriving the system calibration response. The brightness temperatures have been compared that calculated with the absorption model of Liebe´s MPM and measured by the QWF-2 radiometer. The results have been improved very much by the tip curve calibration.
Keywords :
atmospheric optics; atmospheric techniques; atmospheric temperature; calibration; microwave measurement; opacity; radiometers; Liebe MPM absorption model; QWF-2 radiometer; atmosphere opacity; brightness temperatures; calibration technique; ground-based microwave radiometer; system calibration response; tip curve calibration; viewing angle; Brightness temperature; Calibration; Electromagnetic heating; Microwave measurements; Microwave radiometry; Microwave theory and techniques; Temperature measurement; attenuation; brightness temperature; calibration; elevation angle; opacity;
Conference_Titel :
Antennas, Propagation & EM Theory (ISAPE), 2012 10th International Symposium on
Conference_Location :
Xian
Print_ISBN :
978-1-4673-1799-3
DOI :
10.1109/ISAPE.2012.6408884
