Real Time Iterative Algorithms For Optical Signal Processing

Stephen T. Welstead

doi:10.1117/12.942056

25 November 1987 Real Time Iterative Algorithms For Optical Signal Processing

Stephen T. Welstead

Proceedings Volume 0827, Real-Time Signal Processing X; (1987) https://doi.org/10.1117/12.942056
Event: 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States

Abstract

Implementation of iterative algorithms in a real time signal processing environment is described An this paper. The implementation considered here differs from the usual application of these algorithms in that the data flow is allowed to drive the iterations, providing effective real time performance. The particular signal processing application addressed is adaptive noise cancellation. We allow the data flow to continuously update the noise minimization problem, introducing perturbations in the problem. A perturbation analysis is given for the steepest descent algorithm. Numerical results are given for the steepest descent and conjugate gradient algorithms showing how the solution responds to perturbations in the data. An architecture is proposed for the steepest descent algorithm in a real time adaptive acousto-optic noise canceller.

Citation Download Citation

Stephen T. Welstead "Real Time Iterative Algorithms For Optical Signal Processing", Proc. SPIE 0827, Real-Time Signal Processing X, (25 November 1987); https://doi.org/10.1117/12.942056

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available