A15-c3 - A Full-Focusing Ultrasound Phased Array Imaging Method Based on MDMAS
- Event
- 2025 ICU PADERBORN - 9th International Congress on Ultrasonics
2025-09-21 - 2025-09-25
Paderborn - Band
- Lectures
- Chapter
- A15-b - Ultrasonic Scattering
- Author(s)
- Y. Wang, J. Xu, L. Qian, G. Fan - Shanghai University of Engineering Science, Shanghai (China), W. Qi, H. Zhang, W. Zhu - Shanghai University of Engineering Science, Shanghai (China), H. Zhang - Shanghai University, Shanghai (China)
- Pages
- 110 - 113
- DOI
- 10.5162/Ultrasonic2025/A15-c3
- ISBN
- 978-3-910600-08-9
- Price
- free
Abstract
To address the limited contrast and poor noise suppression of conventional Delay Multiply and Sum (DMAS) beamforming, this paper proposes a correlation-guided nonlinear beamforming method. Multiplication is applied only to highly correlated signal pairs to suppress incoherent noise, and a Modified Coherence Factor is introduced to enhance image contrast. Experiments on rail specimens with artificial defects show improved flaw visibility and image clarity over DMAS, demonstrating the proposed method’s potential for reliable phased array ultrasonic imaging.