Title :
Impact of strong direct blast on active sonar systems
Author :
Luzhou Xu ; Jian Li ; Jain, Akshay
Author_Institution :
Univ. of Florida Gainesville, Gainesville, FL, USA
Abstract :
Pulsed active sonar (PAS) and continuous active sonar (CAS) in the presence of a 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. Furthermore, a generalized likelihood ratio-based criterion is developed for moving target detection. CAS is further studied with a Doppler-sensitive SHAPE waveform, and weighted range-Doppler processing for CAS-SHAPE system is introduced.
Keywords :
Doppler effect; sonar; CAS-SHAPE system; Doppler-sensitive SHAPE waveform; Doppler-tolerant linear frequency modulation waveform; PAS; active sonar systems; continuous active sonar; direct blast; pulsed active sonar; range compression images; range-Doppler; target detection; weighted range-Doppler processing; Clutter; Delays; Doppler effect; Noise; Receivers; Shape; Sonar;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
DOI :
10.1109/TAES.2014.140442
