Development of parametric sound imaging system with high range resolution

2015 Fiscal Year Final Research Report

• Project/Area Number: 25350562
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Medical systems
• Research Institution: The University of Electro-Communications
• Principal Investigator: Nomura Hideyuki 電気通信大学, 情報理工学(系)研究科, 准教授 (90334763)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 超音波 / 非線形音響学 / 波形歪 / パラメトリック音源 / パルス圧縮

Outline of Final Research Achievements

A fundamental study of low-frequency ultrasound imaging system has been developed in this study.
Range resolutions of parametric sound at low frequency with the sharp directivity was improved by the application of pulse compression technique. The results indicate the generation of chirp modulated parametric sounds and the realization of pulse compression of the parametric sound.
Finally, low frequency ultrasound images were obtained by the application of the compressed parametric sounds. This result indicates that the proposed method generates low frequency ultrasound images with improved range resolutions.

Free Research Field

音響エレクトロニクス