| 用于增强超声检测信号的分离谱处理性能分析 |
| |
| 引用本文： | 刘镇清.用于增强超声检测信号的分离谱处理性能分析[J].声学技术,1997,16(1):32-35. |
| |
| 作者姓名： | 刘镇清 |
| |
| 作者单位： | 同济大学声学研究所 |
| |
| 基金项目： | 国家自然科学基金,上海市教委青年学术基金 |
| |
| 摘 要： | 若干研究表明，分离谱处理方法是增强粗晶材料超声探伤信号的有效手段，但这种处理方法成功与否受诸如滤波器无中滤波器数等信号处理参数的影响，本文通过实验探讨了信号处理方式与参数的选取问题，实验数据取是奥氏体钢。
|
| 关 键 词： | 分离谱处理 超声检测 信号处理 |
| 收稿时间： | 1996/3/10 0:00:00 |
Performance evaluation of split-spectrum processor for ultrasonic signal enhancement |
| |
| LIU Zhenqing.Performance evaluation of split-spectrum processor for ultrasonic signal enhancement[J].Technical Acoustics,1997,16(1):32-35. |
| |
| Authors: | LIU Zhenqing |
| |
| Abstract: | Split spectrum processing technique has been proved efficient for enhancement of the flaw to grain echo ratio in ultrasonic testing,towever,the success of the method is dependent on selection of the signal processing parameters,such as the number of filters in filter bank.In this paper,the choice of the processing approach and the processing parameters is discussed and experimentally verified for ultrasonic signal obtained from austenitic steel. |
| |
| Keywords: | split spectrum processing ultrasonic testing material noise signal processing |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《声学技术》浏览原始摘要信息 |
|
点击此处可从《声学技术》下载全文 |
|
