Accession Number:

ADA106778

Title:

Time Integrating Optical Signal Processing

Descriptive Note:

Final rept. 1 Aug 1980-31 Jul 1981

Corporate Author:

ESL INC SUNNYVALE CA

Personal Author(s):

• Bader, Todd R.
• Kellman, Peter
• Shaver, Harry N.

Report Date:

1981-07-01

Pagination or Media Count:

98.0

Abstract:

Optical signal processing architectures using time integration on the detector array provide a highly flexible, multipurpose, wideband, realtime processor. A key feature of the time integrating concept is the ability to perform very large time-bandwidth product processing operations on signals without having to store the entire time history of the signal as a spatial record. Further, these signal processing operations may be realized with either coherent or non-coherent optical systems. In the first phase of the program, a comprehensive treatment of time integrating acousto-optic signal processing was undertaken. This treatment includes a synthesis and evaluation of alternative architectures and a detailed statistical analysis of processor performance. New developments include the extension of one-dimensional time integrating optical correlation to two-dimensional processing, the concepts of interferometric signal processing techniques to complex computation. One- and two-dimensional complex signal processing algorithms have been developed for non-coherent optical realizations. Detailed analysis has been made for complex spectral analysis and ambiguity function processing. Complex computation using real correlation processing has been analyzed.

Descriptors:

• *SIGNAL PROCESSING
• *OPTICAL PROCESSING
• ONE DIMENSIONAL
• COHERENCE
• ARRAYS
• SPECTRUM ANALYSIS
• DYNAMIC RANGE
• ACOUSTOOPTICS
• TIME DOMAIN
• COMPUTER ARCHITECTURE
• OPTICAL CORRELATORS
• HYBRID SYSTEMS
• OPTICAL DETECTORS

Subject Categories:

• Acoustooptic and Optoacoustic Devices

Distribution Statement:

APPROVED FOR PUBLIC RELEASE