Title :
Analysis of iterative phase retrieval approach to optimize amplitude measurement parameters
Author :
Jawla, Sudheer K. ; Hogge, J.-P. ; Alberti, S.
Author_Institution :
Centre de Rech. en Phys. des plasmas, Lausanne
Abstract :
This paper describes a thorough analysis made with the Iterative error-reduction approach (IERA) for the determination of phase profiles of the output microwave beam of a gyrotron from known amplitudes. Based on theoretical field profiles of 170GHz/2MW coaxial gyrotron, a numerical/statistical approach is used to study the accuracy of Iterative phase retrieval algorithm. Several measurement parameters are optimized to get more accuracy during the infrared measurements of intensity thermograms of the microwave beam.
Keywords :
gyrotrons; infrared imaging; iterative methods; microwave measurement; optimisation; phase measurement; amplitude measurement parameters optimization; coaxial gyrotron; frequency 170 GHz; infrared measurements; intensity thermograms measurements; iterative error-reduction approach; iterative phase retrieval approach; microwave beam; numerical/statistical approach; power 2 MW; Coaxial components; Frequency; Gyrotrons; Image reconstruction; Iterative methods; Microwave measurements; Microwave propagation; Partial differential equations; Phase measurement; Reconstruction algorithms; Gyrotron; Infrared Imaging; Millimeter wave; Phase Retrieval;
Conference_Titel :
Infrared and Millimeter Waves, 2007 and the 2007 15th International Conference on Terahertz Electronics. IRMMW-THz. Joint 32nd International Conference on
Conference_Location :
Cardiff
Print_ISBN :
978-1-4244-1438-3
DOI :
10.1109/ICIMW.2007.4516689
