Title :
Minimum variance of estimators of the optical area of coherence
Author :
Saleh, Bahaa E.A.
Author_Institution :
University of Santa Catarina, Santa Catarina, Brazil
Abstract :
The Cramér-Rao minimum variance of estimators of the area of coherence of an optical field is found, using the threshold approximation of Helstrom. For a fixed received signal energy, the estimation error is minimum when the aperture area equals the coherence area.
Keywords :
Capacitance; Energy measurement; Energy states; Frequency; Interface states; Optical films; Optical sensors; Photonic band gap; Silicon; Surface treatment;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/PROC.1973.9020
