Enhanced Multistatic Active Sonar via Innovative Signal Processing
Performance technical rept. 1 Oct 2013-30 Sep 2014
FLORIDA UNIV GAINESVILLE OFFICE OF RESEARCH
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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.
- Acoustic Detection and Detectors
- Miscellaneous Detection and Detectors