Optimal filters - A unified approach for SNR and PCEA unified approach for a general metric that encompasses both the signal-to-noise ratio (SNR) and the peak-to-correlation (PCE) ratio in optical correlators is described. In this approach, the connection between optimizing SNR and optimizing PCE is achieved by considering a metric in which the central correlation irradiance is divided by the total energy of the correlation plane. The peak-to-total energy (PTE) is shown to be optimized similarly to SNR and PCE. Since PTE is a function of the search values G and beta, the optimal filter is determined with only a two-dimensional search.
Document ID
19930069074
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Juday, Richard D. (NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1993
Publication Information
Publication: In: Optical information processing systems and architectures IV; Proceedings of the Meeting, San Diego, CA, July 20, 21, 1992 (A93-53067 23-74)
Publisher: Society of Photo-Optical Instrumentation Engineers