P1.9 - Spectral Content Improvement by Spread Spectrum Excitation for Air-Coupled Ultrasound
- Event
- 2025 ICU PADERBORN - 9th International Congress on Ultrasonics
2025-09-21 - 2025-09-25
Paderborn - Band
- Posters
- Chapter
- Posters
- Author(s)
- A. Chaziachmetovas, L. Svilainis, M. Tayyib, V. Eidukynas - Kaunas University of Technology, Kaunas (Lithuania), A. Rodriguez-Martinez - University Miguel Hernandez of Elche, Elche (Spain)
- Pages
- 319 - 322
- DOI
- 10.5162/Ultrasonic2025/P1.9
- ISBN
- 978-3-910600-08-9
- Price
- free
Abstract
Analysis how spectral content of the air-coupled signals can be improved, by using the spread spectrum (SS) signals is presented. Three air-coupled transducers were used to compare the obtained bandwidth, SNR and spectral flatness, when excited using conventional signals and programmable spectrum signals.