Title :
Comparison of Sensitivities Generated by Real Aperture and Synthetic Aperture Radiometers
Author :
Yan, Jingye ; Wu, Ji ; Marin-Neira, Manuel ; Liu, Hao ; Zhang, Shenwei ; Liu, Heguang ; Jiang, Jingshan
Author_Institution :
Center for Space Sci. & Appl. Res. (CSSAR), Chinese Acad. of Sci., Beijing
Abstract :
This paper discusses the sensitivities achieved by either real or synthetic aperture radiometers. In the discussions of both kinds of radiometers, sensitivity is normalized to effective integration time, which is defined to relate the sensitivities of different kind of instruments. Derived relations explicitly demonstrate that the sensitivity by synthetic aperture radiometer is comparable to that of real aperture radiometer.
Keywords :
geophysical equipment; microwave measurement; radiometers; sensitivity; effective integration time; instrument sensitivity; real aperture radiometer; synthetic aperture radiometer; Aperture antennas; Calibration; Content addressable storage; Earth; Instruments; Radiometers; Satellite broadcasting; Space technology; Spatial resolution; Temperature sensors; Sensitivity; microwave radiometer; real aperture; synthetic aperture;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2008. IGARSS 2008. IEEE International
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-2807-6
Electronic_ISBN :
978-1-4244-2808-3
DOI :
10.1109/IGARSS.2008.4780112
