Simulating atmosphere phase screens for dilute arrays

Deane M. Peterson; David Mozurkewich

doi:10.1117/12.459764

21 February 2003 Simulating atmosphere phase screens for dilute arrays

Proceedings Volume 4838, Interferometry for Optical Astronomy II; (2003) https://doi.org/10.1117/12.459764
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

We have developed a new algorithm for simulating atmospheric phase screens that is extremely efficient and flexible. It retains the N log N efficiency of algorithms based on the FFT and is able to take advantage of the small amount of atmosphere actually sampled by highly dilute arrays such as NPOI. Additionally, there is flexibility in the technique to relax (or adopt) the traditional "frozen screen" approximation. We describe the basis for the algorithms and how the code has been structured. Timing estimates are developed and we show preliminary results from the code which exhibit the correct behavior of phase difference power spectra with baseline.

Citation Download Citation

Deane M. Peterson and David Mozurkewich "Simulating atmosphere phase screens for dilute arrays", Proc. SPIE 4838, Interferometry for Optical Astronomy II, (21 February 2003); https://doi.org/10.1117/12.459764

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