Accession Number : ADA323640

Title :   C-Band Radar Testing of the Multichannel Adaptive Optical Processor.

Descriptive Note : Final technical rept. May 95-May 96,

Corporate Author : DYNETICS INC HUNTSVILLE AL

Personal Author(s) : Berinato, R. J. ; Elmore, D. ; Julino, P. S. ; Budge, M. C., Jr

PDF Url : ADA323640

Report Date : FEB 1997

Pagination or Media Count : 133

Abstract : The final report documents the continued design, hardware implementation, and testing of an acousto-optic (AO) multichannel adaptive optical processor (MADOP) for application to the cancellation of multipath jamming interference in advanced surveillance applications. The work described in this report was performed for the Photonics Center at Rome Laboratory (RL) and represents the fourth year of Dynetics support on this project. The key program objective of this effort was to enhance the performance of the MADOP hardware as demonstrated with the C-band radar testbed at the RL Surveillance and Photonics Directorate. The successful integration of the MADOP with the C-band radar testbed was achieved, and testing of jammer cancellation in a number of configurations was performed, including multipath scenarios. Performance results included consistent signal to jammer (S/J) improvement of 30 dB or greater for narrowband tone jammers and 15 to 20 dB for wideband (8-MHz) noise jammers. Results for multipath were on the order of 10-dB S/J improvement for wideband noise jamming with approximately a 110-ns multipath delay and a 1.13 deg angular separation between the direct and multipath jamming signals.

Descriptors :   *SIGNAL PROCESSING, *RADAR SIGNALS, *ACOUSTOOPTICS, TEST BEDS, SIGNAL TO NOISE RATIO, ADAPTIVE SYSTEMS, OPTICAL PROCESSING, NOISE JAMMING, MULTIPATH TRANSMISSION, C BAND.

Subject Categories : Acoustooptic and Optoacoustic Devices

Distribution Statement : APPROVED FOR PUBLIC RELEASE