Title :
The multi-state radiometer: an uncertainty analysis
Author :
Schmidt-Szalowski, M. ; Wiatr, W.
Author_Institution :
Inst. of Electron. Fundamentals, Warsaw Univ. of Technol., Poland
Abstract :
The measurement uncertainty of the multi-state radiometer, the first instrument capable of measuring the impedance and the noise temperature of one-port devices, is analyzed. Diverse contributions to the uncertainty, related to the radiometer calibration and the measurement de-embedding, are thoroughly considered on the base of the covariance matrix determined for the measurands. Experiments made using the radiometer support the analysis.
Keywords :
UHF measurement; calibration; covariance matrices; measurement errors; microwave measurement; radiometry; calibration; covariance matrix; measurands; measurement de-embedding; measurement uncertainty; multi-state radiometer; noise temperature; one-port devices; uncertainty analysis; Calibration; Covariance matrix; Error analysis; Impedance; Instruments; Measurement errors; Measurement uncertainty; Noise measurement; Radiometry; Temperature;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1996 Conference on
Conference_Location :
Braunschweig, Germany
Print_ISBN :
0-7803-3376-4
DOI :
10.1109/CPEM.1996.547167
