Title :
Evaluation of complex measurement uncertainty in polar coordinate for equivalent source reflection coefficient
Author :
Meng, Yu Song ; Shan, Yueyan ; Neo, Hoon
Author_Institution :
Nat. Metrol. Centre, A*STAR (Agency for Sci., Technol. & Res.), Singapore, Singapore
Abstract :
This paper presents a method for evaluating the complex measurement uncertainty in polar coordinate for equivalent source reflection coefficient in direct comparison transfer of microwave power sensor calibration. The method is based on the law of propagation of uncertainty in matrix form. In this paper, general expressions of the covariance matrix for the magnitude and phase uncertainties are derived, and different application scenarios are investigated.
Keywords :
calibration; matrix algebra; measurement uncertainty; microwave detectors; complex measurement uncertainty; covariance matrix; direct comparison transfer; equivalent source reflection coefficient; magnitude uncertainty; matrix form; microwave power sensor calibration; phase uncertainty; polar coordinate; Covariance matrix; Measurement uncertainty; Microwave measurements; Microwave theory and techniques; Reflection; Standards; Uncertainty; Direct comparison transfer; measurement uncertainty; precision measurements;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2012 Conference on
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4673-0439-9
DOI :
10.1109/CPEM.2012.6250688
