FPGA-based ultrasonic signal processing platform
FPGA-based ultrasonic signal processing platform
复制标题
基于FPGA的超声波信号处理平台
DOI：
10.1109/eit.2016.7535308
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Raymond Smith
中科院分区：
文献类型：
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作者：
Yufeng Lu;I. S. Ahn;Raymond Smith
超声无损检测技术已广泛应用于关键结构的质量评估和失效分析。目前无损检测系统一般采用单片机和数字信号处理器设计，不能满足高速性和适应性的要求。这需要可重新配置的计算设备来实现系统。本研究旨在利用现场可编程门阵列（FPGA）构建一个超声信号实时处理原型平台。该平台以100 MSPS的速度采集超声数据。在FPGA上运行的嵌入式系统可重新编程，以评估信号处理算法和NDE方法。为了演示该系统，实现了分裂光谱处理算法，并将结果显示在触摸屏LCD上。由于FPGA的灵活性，该平台不仅限于超声无损检测应用。它可能对未来的信号处理研究和教育项目开发产生更广泛的影响。
Ultrasonic nondestructive evaluation (NDE) has been widely used in quality assessment and failure analysis for critical structures. The NDE system is commonly designed on microcontrollers and digital signal processors, which fall short of meeting the demands of high speed and requirements of adaptability. This requires reconfigurable computing devices to implement the system. This study aims to build a prototype real-time ultrasonic signal processing platform using Field Programmable Gate Array (FPGA). The platform acquires ultrasound data at the speed of 100 MSPS. The embedded system running on an FPGA is reprogrammable to evaluate signal processing algorithms and NDE methods. To demonstrate the system, a split spectrum processing algorithm is implemented and the result is displayed on a touch screen LCD. Thanks to the flexibility of FPGA, the platform is not limited to ultrasound NDE application. It may have a broader impact on future project development for signal processing research and education.