Proceedings. 2005 IEEE International Geoscience and Remote Sensing Symposium, 2005. IGARSS '05.
DOI: 10.1109/igarss.2005.1526032
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Calibration subsystem for spaceborne interferometric radiometer

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Cited by 4 publications
(2 citation statements)
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“…This characterization method, i.e., the use of the characteristics of all individual CAS units (NS units, PD units, and cables) and a mathematical model, was successfully verified in the CAS Engineering Model (EM) test campaign [6]. During the characterization test campaign of CAS FM, the following parameters were determined as a function of temperature: 1) S-parameters between NS units' test inputs and output ports; 2) S-parameters of PD units; 3) S-parameters of cables, and 4) noise level at NS units' outputs.…”
Section: B Characterizationmentioning
confidence: 99%
“…This characterization method, i.e., the use of the characteristics of all individual CAS units (NS units, PD units, and cables) and a mathematical model, was successfully verified in the CAS Engineering Model (EM) test campaign [6]. During the characterization test campaign of CAS FM, the following parameters were determined as a function of temperature: 1) S-parameters between NS units' test inputs and output ports; 2) S-parameters of PD units; 3) S-parameters of cables, and 4) noise level at NS units' outputs.…”
Section: B Characterizationmentioning
confidence: 99%
“…Three NIR Flight Models will be included in the central hub of MIRAS. The main purposes of NIR are (A) to provide precise measurement of the average (fully polarimetric) brightness temperature scene for the absolute calibration of the MIRAS image map, and (B) to measure the noise temperature level of the reference noise of Calibration Subsystem (CAS), which is used to calibrate the amplitude and phase differences of individual receivers of MIRAS [3]. Thus, NIR is the absolute amplitude reference of MIRAS between cold sky looks, which are performed relatively seldom in-orbit.…”
Section: Functionmentioning
confidence: 99%