超声相控阵检测成像系统软件设计

Software Design of Ultrasonic Phased Array Detection and Imaging System

基于嵌入式Linux与Qt/Embedded,构建了超声相控阵检测成像系统软件。结合中断方式与DMA(直接内存存取)传输,设计了软硬件通信接口驱动程序,完成了FPGA(现场可编程门阵列)与ARM(先进精简指令集计算机处理机)间的数据交互;搭建了人机交互界面,采用模块化设计思想,根据系统功能进行上层应用程序设计,编写了相应代码,完成了回波数据处理以及成像显示等功能的实现。通过试验对系统进行测试,结果显示系统运行正常,符合设计要求。

The ultrasonic phased array detection and imaging software system are built in this paper based on embedded Linux and Qt/Embedded.Combining the interrupt mode and the DMA（Direct Memory Access）transmission,the software and hardware communication interface driver is designed to complete the data interaction between the FPGA（Field-Programmable Gate Array）and the ARM（Advanced RISC Machine）.A human-machine interaction interface is built.The upper level application program is designed according to the system function using modular design idea.The corresponding code is written to complete the function of echo data processing and imaging.The system is tested through the experiment.It runs normally and meets the design requirements.