基于DDS的电子相控聚焦系统的设计  

Electronic Phased Focusing Technology Design Based on DDS

作　　者：陈琦[1] 朱晓荣[1] 陈亚珠[1] 

机构地区：[1]上海交通大学生物医学仪器研究所,上海200030

出　　处：《电子器件》2002年第3期241-244,共4页Chinese Journal of Electron Devices

摘　　要：本文提出了采用直接数字合成实现电子相控聚焦系统的设计。在该系统设计中 ,以FPGA芯片作为核心器件 ,通过底层软件编程实现高强度聚焦超声的数字化相位调控。实验表明 ,该设计具有调控准确、可靠性高等优点 。This paper gives the design of electronic phased focused system adopted direct digital synthesis. In the system design FPGA slug as a key device realizes digital phase control of high intensity focused ultrasound through base software programming. Experiments show that the focused system has the merits in feasibility and accurateness, and has great significance in HIFU clinical application.

关 键 词：电子相控聚焦系统 直接数字合成 DDS 相拉控制 现场可编程门阵列 FPGA 超声控制 

分 类 号：TB553[理学—物理]