Analysis and Simulation Study of a 2D Rotational Subarray

• Main Author: 陳健生
• Other Authors: 曹建和
• Format: Others
• Language: zh-TW
• Published: 2000
• Online Access: http://ndltd.ncl.edu.tw/handle/86576248571014343268

碩士 === 國立臺灣大學 === 電信工程學研究所 === 88 === Nowadays, the development of the medical ultrasonic imaging system was from 1D array system to 2D array system because there were many excellent benefits of the 2D array system. Unfortunately, the hardware cannot be easily designed and implemented due to the huge numbers of elements and high complexity. For the consideration of the implementation, the 2D array system must be simplified. We found a new structure named“ Rotational Subarray Scheme ”to stand on a balance between the performance and hardware complexities. The beampattern simulation was used to prove the performance of this scheme. The wide discussion of Rotational Subarray Scheme was given, including of our idea was based on the wavefront matching concept and the subarray method, the structure design and analysis, and the time delay error analysis. Finally, we used the computer simulation to compare the differences between ordinary 2D array reduced schemes and our reduced scheme to verify the performance of Rotational Subarray.