Accuracy requirements of optical linear algebra processors in adaptive optics imaging systems

John D. Downie

doi:10.1117/12.21280

1 September 1990 Accuracy requirements of optical linear algebra processors in adaptive optics imaging systems

John D. Downie

Proceedings Volume 1296, Advances in Optical Information Processing IV; (1990) https://doi.org/10.1117/12.21280
Event: 1990 Technical Symposium on Optics, Electro-Optics, and Sensors, 1990, Orlando, FL, United States

Abstract

A ground-based adaptive optics imaging telescope system attempts to improve image quality by detecting and correcting for atmospherically induced wavefront aberrations. The required control computations during each cycle will take a finite amount of time. Longer time delays result in larger values of residual wavefront error variance since the atmosphere continues to change during that time. Thus an optical processor may be well-suited for this task. This paper presents a study of the accuracy requirements in a general optical processor that will make it competitive with, or superior to, a conventional digital computer for the adaptive optics application. An optimization of the adaptive optics correction algorithm with respect to an optical processor's degree of accuracy is also briefly discussed.

Citation Download Citation

John D. Downie "Accuracy requirements of optical linear algebra processors in adaptive optics imaging systems", Proc. SPIE 1296, Advances in Optical Information Processing IV, (1 September 1990); https://doi.org/10.1117/12.21280

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