- Tytuł:
- Golay Coded Sequences in Synthetic Aperture Imaging Systems
- Autorzy:
-
Trots, I.
Tasinkevych, Y.
Nowicki, A.
Lewandowski, M. - Powiązania:
- https://bibliotekanauki.pl/articles/176941.pdf
- Data publikacji:
- 2011
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
ultrasound imaging
synthetic aperture
beamforming
radiation pattern
coded sequences
Golay codes - Opis:
- The paper presents the theoretical and experimental study of synthetic transmit aperture (STA) method combined with Golay coded transmission for medical ultrasound imaging applications. The transmission of long waveforms characterized by a particular autocorrelation function allows to increase the total energy of the transmitted signal without increasing the peak pressure. It can also improve signal- to-noise ratio and increase the visualization depth maintaining the ultrasound image resolution. In the work the 128-element linear transducer array with 0.3 mm pitch excited by the 8 and 16-bits Golay coded sequences as well as a one cycle at nominal frequencies 4 MHz were used. The comparison of 2D ultrasound images of the tissue mimicking phantoms is presented to demonstrate the benefits of coded transmission. The image reconstruction was performed using synthetic STA algorithm with transmit and receive signals correction based on a single element directivity function.
- Źródło:
-
Archives of Acoustics; 2011, 36, 4; 913-926
0137-5075 - Pojawia się w:
- Archives of Acoustics
- Dostawca treści:
- Biblioteka Nauki
Artykuł