A Distributed Memory Multilevel Fast Physical Optics Algorithm

Konferenz: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
23.03.2009 - 27.03.2009 in Berlin, Germany

Tagungsband: EuCAP 2009

Seiten: 4Sprache: EnglischTyp: PDF

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Parrot, Christian; Millot, Daniel; Letrou, Christine (Lab. SAMOVAR (UMR CNRS 5157), Institut TELECOM SudParis, 9 rue Charles Fourier, 91011 Evry Cedex, France)
Boag, Amir (School of Electrical Engineering, Tel Aviv University, Tel Aviv 69978, Israel)

The MultiLevel fast Physical Optics (MLPO) algorithm attains a computational complexity comparable to that of the Fast Fourier Transform (FFT) based techniques by using hierarchical domain decomposition and phase compensated interpolation approach. In this communication we present an optimized distributed memory algorithm, obtained by partitioning not only the radiating aperture but also the grid of far field directions. Such a scheme leads to improved speed and reduced memory requirements. The performance of the proposed approach is evaluated in terms of load balance and communication cost, and tested in the context of very large antenna problems.