Title :
Development of a high stability L-band radiometer for ocean salinity measurements
Author :
Tanner, Alan B. ; Wilson, William J. ; Pellerano, Fernando A.
Author_Institution :
Jet Propulsion Lab., Pasadena, CA, USA
Abstract :
An NEDT analysis of a Dicke radiometer with noise diode injection is presented. The analysis is formulated for a calibration that would form separate running averages of receiver noise temperature and of gain in order to minimize the NEDT and maximize the antenna observation duty cycle relative to the reference and noise diode duty cycles. Results are applied to the Aquarius ocean salinity radiometer problem to show that near ideal total-power radiometer performance is possible.
Keywords :
oceanographic equipment; oceanography; radiometers; remote sensing by radar; 1.4 GHz; Aquarius; Dicke radiometer; L-band radiometer; NEDT analysis; antenna observation duty cycle; noise diode duty cycles; noise diode injection; noise equivalent delta-T; ocean salinity measurements; receiver noise temperature; Antenna measurements; Calibration; Diodes; L-band; Ocean salinity; Ocean temperature; Radiometry; Receiving antennas; Sea measurements; Stability;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International
Print_ISBN :
0-7803-7929-2
DOI :
10.1109/IGARSS.2003.1294069
