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Proceedings Paper

Architecture of a multiprocessor system for Hartmann-Shack wavefront sensor
Author(s): Lingtao Jiang; Zhijun Rong; Chenhong Wang
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Paper Abstract

Hartmann-shack method is widely used in adaptive optics system for wavefront sensing. A data processing system is used in the sensor for computing wavefront gradient, wavefront reconstruction and control. To get a wide control bandwidth, the system speed should be high enough and the time delay should be as short as possible. In this paper, a multiprocessor system for a 37-element Hartmann-Shack Wavefront Sensor (H-S WFS) is presented. The main computation is completed by 4 processing modules in parallel, and the data acquisition, processing and communication are conducted in pipeline. The system can process video signal at 380 frames/sec and the time delay is less than 1/8 of frame period.

Paper Details

Date Published: 25 August 1993
PDF: 8 pages
Proc. SPIE 1920, Active and Adaptive Optical Components and Systems II, (25 August 1993); doi: 10.1117/12.152667
Show Author Affiliations
Lingtao Jiang, Institute of Optics and Electronics (China)
Zhijun Rong, Institute of Optics and Electronics (China)
Chenhong Wang, Institute of Optics and Electronics (China)

Published in SPIE Proceedings Vol. 1920:
Active and Adaptive Optical Components and Systems II
Mark A. Ealey, Editor(s)

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