Abstract Details
| Name: Avinash Surendran Affiliation: Indian Institute of Astrophysics Conference ID: ASI2015_538 Title : Development of a Scalable Generic Platform for Adaptive Optics Real Time Control Authors and Co-Authors : A. N. Ramaprakash, IUCAA Mahesh P. Burse, IUCAA Abstract Type : Poster Abstract Category : Instrumentation and Techniques Abstract : ABSTRACT The main objective of the present project is to explore the viability of an adaptive optics control system based exclusively on FPGAs, making strong use of their parallel processing capability. In an Adaptive Optics system, the generation of the Deformable Mirror (DM) control voltages from the Wavefront Sensor (WFS) measurements is usually through the multiplication of the wavefront slopes with a predetermined Reconstructor matrix. The ability to access several hundred hard multipliers and memories concurrently allows performance far beyond that of a modern CPU or GPU for tasks with a well defined structure such as Adaptive Optics control. The target of the current project is to generate a signal for a real time wavefront correction, from the signals coming from a Wavefront Sensor, wherein the system would be flexible to accommodate all the current Wavefront Sensing techniques and also the different methods which are used for wavefront compensation. The system should also accommodate for different data transmission protocols (like Ethernet, USB, IEEE 1394 etc.) for transmitting data to and from the FPGA device, thus providing a more flexible platform for Adaptive Optics control. Preliminary Simulation Results for the formulation of the platform, and a design of a fully scalable slope computer will be presented. Some preliminary work regarding a scalable AO reconstructor will also be presented. |