A Distributed Memory Multilevel Fast Physical Optics Algorithm
Conference: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
03/23/2009 - 03/27/2009 at Berlin, Germany
Proceedings: EuCAP 2009
Pages: 4Language: englishTyp: PDF
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Authors:
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)
Abstract:
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.