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

fYear

2007

fDate

2-9 Sept. 2007

Firstpage

702

Lastpage

703

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICIMW.2007.4516689

Filename

4516689