Optimal wave-front estimation
Abstract
A description is presented of an optimum linear estimator for a compensated imaging system with sensor noise. The number of terms required to obtain nearly optimal performance in the estimator increases with increasing sensor noise. A number of 20 terms is nearly optimal in the case of sensor noise which is less than or equal to the error caused by system time delay. Attention is given to a system model, the mean-square error, temporal averaging, space-time weighting, optimum space-time estimation, questions of term selection, and the spatial dependence of the estimator.
- Publication:
-
Journal of the Optical Society of America (1917-1983)
- Pub Date:
- March 1977
- DOI:
- 10.1364/JOSA.67.000378
- Bibcode:
- 1977JOSA...67..378H
- Keywords:
-
- Adaptive Optics;
- Image Motion Compensation;
- Optimal Control;
- Wave Front Reconstruction;
- Algorithms;
- Control Theory;
- Error Analysis;
- Imaging Techniques;
- Linear Systems;
- Photons;
- Random Processes;
- Instrumentation and Photography