- Tytuł:
- Wideband beamformer in the frequency domain
- Autorzy:
- Elminowicz, A.
- Powiązania:
- https://bibliotekanauki.pl/articles/332683.pdf
- Data publikacji:
- 2003
- Wydawca:
- Polskie Towarzystwo Akustyczne
- Tematy:
-
acoustics
wideband sonar
beamforming - Opis:
- In modern high resolution wideband sonars using linear array, beamforming constitutes one of the most difficult problems. This paper presents a new efficient method of beamforming in the frequency domain. Applying fast Fourier transforms: to transfer into the frequency domain - temporal FFT (TFFT); to make spatial filtration spatial FFT (SFFT) and to transfer from the frequency domain - inverse FFT (IFFT), as well as fast convolution in the frequency domain correlating the conjugated and corrected replicas for each beam with picked up samples of SFFT for each frequency and each beam we obtain a processing that is less calculations burdened than other known processing algorithms.
- Źródło:
-
Hydroacoustics; 2003, 6; 235-242
1642-1817 - Pojawia się w:
- Hydroacoustics
- Dostawca treści:
- Biblioteka Nauki
Artykuł