Architecture of the MAD real time computer

Details Architecture of the MAD real time computer Architecture of the MAD real time computer

Feb 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003spie.4839..600f&link_type=abstract

Adaptive Optical System Technologies II. Edited by Wizinowich, Peter L.; Bonaccini, Domenico. Proceedings of the SPIE, Volume 4

Physics

Optics

1

Scientific paper

The ESO-MAD (MCAO Technological Demonstrator) is a fast track project aimed at demonstrating the maturity of the Multi-Conjugate Adaptive Optics concept through a prototype MCAO instrument that uses only natural guide stars. This prototype features two different wavefront sensing architectures (Shack-Hartmann and Layer-Oriented), two deformable mirrors and one tip/tilt stage. One of the objectives of MAD is also to explore computing architectures different from the ones adopted so far. MAD-RTC is based on the latest generation general-purpose processors in a parallel architecture that can easily (even though not unexpensively) scale up to accomodate large or very large MCAO systems. MAD-RTC is a multi-wavefront-sensor multi-algorithm real time computer implemented in a Quad-G4 PPC computing board. It is designed to be a test-bed to study different solutions for the future MCAO systems: it can accept data from multiple CCDs in different configurations, use different reconstruction and control algorithms and drive multiple mirrors simultaneously.

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