Application of Signal Denoising by Using FIR Filter Based on FPGA in an Ultrasonic Guided Waves Receiving System [基于FPGA的FIR滤波器在超声导波接收系统中信号降噪的应用] - 文章详情页

作者：

He, C. (He, C..) | Wang, S. (Wang, S..) | Wu, Q. (Wu, Q..) | Liu, Z. (Liu, Z..) | Wu, B. (Wu, B..)

收录：

Scopus PKU CSCD

摘要：

In　an　ultrasonic　guided　waves　receiving　system,　to　suppress　the　noise　in　the　acquisition　signal,　a　digital　FIR　filter　based　on　FPGA　was　designed　to　filter　the　signals　in　signal　acquisition　of　an　ultrasonic　guided　waves　receiving　system.　First,　the　working　principle　of　FIR　filter　in　FPGA　was　descripted.　MATLAB　was　used　to　design　the　FIR　filter,　while　Verilog　was　used　to　program　the　filter　in　FPGA.　ModelSim　was　used　for　the　simulation　and　the　filtering　function　could　achieve　the　required　output.　Finally,　the　proposed　design　was　really　used　to　process　the　ultrasonic　guided　waves　signals　in　the　developed　system.　Results　show　the　filtering　function　can　be　well　achieved.　©　2018,　Editorial　Department　of　Journal　of　Beijing　University　of　Technology.　All　right　reserved.

关键词：

Defect; Denoising; FIR filter; FPGA; Ultrasonic guided waves

作者机构：

[ 1 ] [He, C.]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing, 100124, China
[ 2 ] [Wang, S.]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing, 100124, China
[ 3 ] [Wu, Q.]Faculty of Information Technology, Beijing University of Technology, Beijing, 100124, China
[ 4 ] [Liu, Z.]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing, 100124, China
[ 5 ] [Wu, B.]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing, 100124, China

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