Accession Number:

ADA624466

Title:

Enhanced Multistatic Active Sonar via Innovative Signal Processing

Descriptive Note:

Performance technical rept. 1 Oct 2013-30 Sep 2014

Corporate Author:

FLORIDA UNIV GAINESVILLE OFFICE OF RESEARCH

Personal Author(s):

Report Date:

2014-09-30

Pagination or Media Count:

12.0

Abstract:

Pulsed active sonar PAS and continuous active sonar CAS in the presence of strong direct blast are studied for the Doppler-tolerant linear frequency modulation waveform. A comparative analysis is done between PAS and CAS based on the range-Doppler and range-compression images obtained. Further, a generalized likelihood ratio GLR based criterion is developed for moving target detection. CAS is further studied with a Doppler-sensitive SHAPE waveform and a weighted range-Doppler processing for CAS-SHAPE system is introduced. In-water experimentation results are provided, aimed at highlighting the merits and limitations of PAS and CAS, as well as Doppler-tolerant and Doppler-sensitive waveforms in the presence of a strong delay and Doppler-spread direct blast.

Subject Categories:

  • Acoustic Detection and Detectors
  • Miscellaneous Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE