Concept of field-to-resolution ratio in aperture synthesis

Andre Lannes; Eric Anterrieu; Laurent Koechlin; Geraldine Fitoussi

doi:10.1117/12.185273

13 September 1994 Concept of field-to-resolution ratio in aperture synthesis

Andre Lannes, Eric Anterrieu, Laurent Koechlin, Geraldine Fitoussi

Proceedings Volume 2209, Space Optics 1994: Earth Observation and Astronomy; (1994) https://doi.org/10.1117/12.185273
Event: Space Optics '94, 1994, Garmisch, Germany

Abstract

The analysis of the imaging properties of an interferometric device essentially depends on the parameters that govern the Fourier synthesis operation: extension and density of the experimental frequency coverage (resolution, field, robustness), size and nature of the input errors (input data for the study of the error propagation). Among these parameters, the Field- to-Resolution Ratio (FRR) proves to play a key role, in particular, for array configuration optimization: the number of contiguous elements that can be resolved in the synthesized field is bounded by (FRR). The robustness of the corresponding reconstruction process is of course involved in the precise definition of this concept. The corresponding analysis is based on a new method of Fourier synthesis (WIPE), in which all these aspects are clearly specified (WIPE reminds of CLEAN, a well-known deconvolution technique in astronomy).

Citation Download Citation

Andre Lannes, Eric Anterrieu, Laurent Koechlin, and Geraldine Fitoussi "Concept of field-to-resolution ratio in aperture synthesis", Proc. SPIE 2209, Space Optics 1994: Earth Observation and Astronomy, (13 September 1994); https://doi.org/10.1117/12.185273

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