Abstract
In underwater acoustics, there has been many studies for finding the target direction using beamforming technique. When receiving a signal with a frequency higher than the design frequency of the array, it is difficult to estimate the direction of the signal due to spatial aliasing. In this study, we propose a method of estimating the direction of the frequency signal higher than the design frequency of the array by using frequency-wavenumber analysis. When the frequency-wavenumber analysis is performed, the striation pattern appears, and it is confirmed that the slope of the striation remains constant even if the spatial aliasing occurs. The direction of the signal was estimated by visual inspection and it was verified with SAVEX15 data.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
