Architecture of a multiprocessor system for Hartmann-Shack wavefront sensor

Lingtao Jiang; Zhijun Rong; Chenhong Wang

doi:10.1117/12.152667

25 August 1993 Architecture of a multiprocessor system for Hartmann-Shack wavefront sensor

Lingtao Jiang, Zhijun Rong, Chenhong Wang

Proceedings Volume 1920, Active and Adaptive Optical Components and Systems II; (1993) https://doi.org/10.1117/12.152667
Event: 1993 North American Conference on Smart Structures and Materials, 1993, Albuquerque, NM, United States

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.

Citation Download Citation

Lingtao Jiang, Zhijun Rong, and Chenhong Wang "Architecture of a multiprocessor system for Hartmann-Shack wavefront sensor", Proc. SPIE 1920, Active and Adaptive Optical Components and Systems II, (25 August 1993); https://doi.org/10.1117/12.152667

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