Convex, nonconvex and direct phase retrieval methods for the application in phaseless near-field antenna measurements are presented. Linearized phase reconstruction formulations based on the concept of partial coherence, which is not limited to antenna measurements, are introduced. These methods enable reliable field transformations of data acquired with multi-channel receivers and at multiple frequencies. An extension of incoherent transformations with a source-based echo suppression is discussed.
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Convex, nonconvex and direct phase retrieval methods for the application in phaseless near-field antenna measurements are presented. Linearized phase reconstruction formulations based on the concept of partial coherence, which is not limited to antenna measurements, are introduced. These methods enable reliable field transformations of data acquired with multi-channel receivers and at multiple frequencies. An extension of incoherent transformations with a source-based echo suppression is discuss...
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