Title :
Aperture extension for a towed array using an acoustic synthetic aperture or a linear prediction method
Author :
Stergiopoulos, Stergios ; Allcott, Nathan T.
Author_Institution :
Defence Research Establishment Atlantic, Dartmouth, NS, Canada
Abstract :
Previous investigations have shown that bearing resolution may be improved by increasing a towed array´s aperture with high resolution or acoustic synthetic aperture techniques. The performance and conditions for effective use of these processing concepts are investigated. Experimental results indicate that both techniques are robust approaches for providing high bearing resolution
Keywords :
acoustic signal processing; array signal processing; filtering and prediction theory; sonar; acoustic synthetic aperture; aperture extension; array signal processing; bearing resolution; linear prediction method; sonar systems; towed array; Acoustic arrays; Apertures; Frequency estimation; Log periodic antennas; Performance gain; Sensor arrays; Signal synthesis; Signal to noise ratio; Sonar equipment; Spatial resolution;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1992. ICASSP-92., 1992 IEEE International Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-0532-9
DOI :
10.1109/ICASSP.1992.226027
