Performance Evaluation of Phase-Angle Gradient Method for Phase Retrieval based on Low-Frequency amplitude-Only Near-Field Data
Artikel i vetenskaplig tidskrift, 2010

The Phase Angle Gradient Method (PAGM) is a recent technique developed for phase retrieval based on amplitude-only measurement data. Preliminary results have shown that the PAGM is able to perform phase retrieval at 100MHz with accurate phase information based on measured fIeld components on three planar surfaces. In this paper, a performance evaluation of the PAGM under different conFigurations is conducted. Phase retrieval based on field measurements for different plane sizes and separations between the planes are studied rigorously. In addition, the PAGM is tested for different initial phase distributions. The results show that the PAGM is capable of retrieving phase information even if the separation between the measurement planes is small in terms of wavelengths.

Författare

Markus Johansson

Signaler och system, Signalbehandling och medicinsk teknik, Biomedicinsk elektromagnetik

Hoi-Shun Lui

Signaler och system, Signalbehandling och medicinsk teknik, Biomedicinsk elektromagnetik

Mikael Persson

Signaler och system, Signalbehandling och medicinsk teknik, Biomedicinsk elektromagnetik

Progress in Electromagnetics Research B

1937-6472 (ISSN)

Vol. 25 113-130

Styrkeområden

Informations- och kommunikationsteknik

Drivkrafter

Hållbar utveckling

Ämneskategorier

Elektroteknik och elektronik

DOI

10.2528/PIERB10070205