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Título del libro: Proceedings - 2006 International Conference On Field Programmable Logic And Applications, Fpl
Título del capítulo: Adaptive optics real-time control using FPGA

Autores UNAM:
GUILLERMO MANUEL HERRERA PEREZ;
Autores externos:

Idioma:

Año de publicación:
2006
Palabras clave:

Astronomical satellites; Atmospheric turbulence; Field programmable gate arrays (FPGA); Fuzzy logic; Optical testing; Optics; Photography; Real time control; Real time systems; Turbulence; Closed loops; Field programmable logic (FPL); In order; international conferences; Optical tests; processing chain; Processing power; Real time compensations; Real time control (RTC); Virtex 4; Adaptive optics


Resumen:

Adaptive optics is a very promising field in earth-based astronomy, and has become a must in the development of large (10 m) and giant (50-100 m) telescopes. Real time compensation of the atmospheric turbulence requires a huge amount of processing power that goes beyond the practical limits of today's processor capability, and perhaps tomorrow's. FPGAs may become a viable approach when exploiting their natural parallel arrangement and their continuously improving speed, after their size has grown up to the point of accepting a whole system to be embedded in just one unit. In order to evaluate the feasibility of such a system, a laboratory adaptive optical test bench has been developed, needing only one VIRTEX-4 FPGA to implement the whole closed loop processing chain, computing 39 actuations from a 8×8 microlenses array at 1000 images per second. © 2006 IEEE.


Entidades citadas de la UNAM: