【作者】 张琳；

【导师】 曹宗杰； 邱智；

【作者基本信息】 电子科技大学 ， 电子与通信工程（专业学位）， 2013， 硕士

【摘要】 B超诊断仪在我国已经有近60年的生产与应用历史，其对人体无损伤、无痛苦、无电离辐射、显示方法多样等显著优特点，与CT、X线、核医学、磁共振并驾齐驱、又互为补充成为现代医学影像诊断仪器。在现代医学医疗中。随着临床诊断的需求、电子技术的飞速发展以及B型超声诊断设备的广泛普及，超声影像技术已经跨越了三个台阶：七十年代采用模拟技术的B超、八十年代采用模拟/数字混合技术的B超和双工系统、九十年代采用全数字技术的超声影像系统。随着计算机、微电子等一些新技术在医疗设备上的应用，出现了越来越多的便携式设备，传统的推车式B超检查仪也向便携式方向发展，于是就出现了便携式B超检查仪。FPGA作为专用集成电路中的半定制式电路出现，它是在PAL、GAL、CPLD等可编程器件上进一步发展的产物，它解决了过去定制电路的不足，同时克服了原可编程器件中有限个门电路的缺点。随着集成电路制作工艺的不断发展，FPGA通常集成了几万到几百万门电路，同时低功耗、开发周期快、成本低、可重复编程和擦写等特点，越来越多电子工程设计人员专注于围绕FPGA进行系统开发。本文在分析国内外超声诊断仪市场现状后，提出一种MP430+FPGA的双核构架实现便携式B超诊断仪的方案。选用MP430F247实现人机交互、系统协调工作；选用Altera公司CyclongIII系列的EP3C40F484C8芯片去实现超声信号处理。本文首先分析超声诊断仪的基本原理，对电路的原理结构和硬件结构进行了学习，并深入讨论了超声波束合成、信号处理、扫描转换等模块的关键算法。更多还原

【Abstract】 B-mode ultrasound diagnostic apparatus has a history of nearly60years ofproduction and application in our country, its no damage to human body, no pain, noionizing radiation, display method varied significantly better features, and CT, X-ray,nuclear medicine, magnetic resonance racing together bridle to bridle, and complementof modern medical imaging diagnosis instrument. In the modern medical care. With thepopularization of the rapid development of clinical diagnosis demand, electronictechnology and B mode ultrasonic diagnostic equipment, ultrasonic imaging technologyhas spanned three steps: B ultrasound, ultrasound imaging system in seventy usingsimulation technology of the eighty’s analog/digital hybrid technology B ultrasoundand duplex system, ninety time using digital technology. With the application of somenew computer technology, microelectronics in the medical device, the portableequipment more and more, cart type B ultrasound examination instrument traditionalalso to portable direction, and it is the portable B-mode ultrasonography examinationinstrument.PGA as a special integrated circuit in a semi-customized circuit, it is a product ofthe programmable device on the further development of the PAL, GAL, CPLD, it solvesthe problems of the past custom circuit, at the same time, to overcome the originalprogrammable device Co., a gate circuit. With the continuous development of theintegrated circuit manufacturing process, FPGA usually integrates tens of thousands tomillions of gate circuit, at the same time, low power consumption, low cost, fastdevelopment cycle, repeatable programming and erasing characteristics, more and moreelectronic engineering design personnel to focus on FPGA system development.Based on the analysis of current situation of domestic and foreign markets afterultrasonic diagnostic apparatus, the dual-core architecture for MP430+FPGAimplementation of portable B ultrasound diagnostic apparatus for. Use MP430F247toachieve human-computer interaction, system coordination work; to realize the ultrasonicsignal processing using EP3C40F484C8chip of Altera Corporation CyclongIII series.This paper first analyzes the basic principles of ultrasonic diagnostic apparatus, the principle structure and hardware circuit are learning, and discussed the key algorithm ofultrasonic beam synthesis, signal processing, scan conversion module.更多还原