Title :
Fourier-based imaging applied to synthetic aperture sonar
Author :
Rastello, T. ; Vray, D. ; Delachartre, P. ; Prost, R.
Author_Institution :
Inst. Nat. des Sci. Appliquees, Villeurbanne, France
Abstract :
Synthetic aperture imaging can be achieved either in the time domain or in the frequency domain. These two approaches are compared in terms of spatial resolution, mathematical formalism and implementation. The application of Fourier-based imaging to synthetic aperture sonar is suggested. The whole processing is then performed in the frequency domain. The authors show that target detection is improved with that approach
Keywords :
Fourier transforms; geophysical signal processing; geophysical techniques; oceanographic techniques; seafloor phenomena; sediments; sonar; sonar imaging; sonar target recognition; Fourier-based imaging; bathymetry; frequency domain; geophysical measurement technique; image resolution; marine sediment; mathematical formalism; ocean; sea; seafloor; sonar imaging; spatial resolution; synthetic aperture imaging; synthetic aperture sonar; target detection; time domain; Azimuth; Focusing; Fourier transforms; Frequency domain analysis; Gas detectors; Interpolation; Sonar detection; Spatial resolution; Synthetic aperture radar; Synthetic aperture sonar;
Conference_Titel :
OCEANS '96. MTS/IEEE. Prospects for the 21st Century. Conference Proceedings
Conference_Location :
Fort Lauderdale, FL
Print_ISBN :
0-7803-3519-8
DOI :
10.1109/OCEANS.1996.569137
