Search Results for author: Josef Knapp

Found 4 papers, 0 papers with code

Reliable Linearized Phase Retrieval for Near-Field Antenna Measurements with Truncated Measurement Surfaces

no code implementations20 Sep 2021 Alexander Paulus, Josef Knapp, Jonas Kornprobst, Thomas F. Eibert

Most methods tackling the phase retrieval problem of magnitude-only antenna measurements suffer from unrealistic sampling requirements, from unfeasible computational complexities, and, most severely, from the lacking reliability of nonlinear and nonconvex formulations.

Retrieval

Multi-Frequency Phase Retrieval for Antenna Measurements

no code implementations20 May 2021 Josef Knapp, Alexander Paulus, Jonas Kornprobst, Uwe Siart, Thomas F. Eibert

Phase retrieval problems in antenna measurements arise when a reference phase cannot be provided to all measurement locations.

Retrieval

Linear Phase Retrieval for Near-Field Measurements with Locally Known Phase Relations

no code implementations12 Nov 2020 Alexander Paulus, Jonas Kornprobst, Josef Knapp, Thomas F. Eibert

A linear and thus convex phase retrieval algorithm for the application in phaseless near-field far-field transformations is presented.

Retrieval

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