Study of Triple-Transition-Reflection Signal for Wavelet Transform Element of SAW Type

LU Wen-ke; ZHU Chang-chun; LIU Qing-hong; LIU Jun-hua; FANG Jian-an; WEN Chang-bao

您当前的位置：

首页 >

文章列表页 >

Study of Triple-Transition-Reflection Signal for Wavelet Transform Element of SAW Type

更新时间：2025-07-16

- Study of Triple-Transition-Reflection Signal for Wavelet Transform Element of SAW Type
- Acta Electronica Sinica Vol. 36, Issue 2, Pages: 346-349(2008)
- 作者机构：
  
  1. 东华大学信息科学与技术学院,上海,201620
  2. 西安交通大学电子与信息工程学院,陕西,西安,710049
  3. 东华大学信息科学与技术学院上海,201620
  4. 西安交通大学电子与信息工程学院陕西西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： O426
- Published：2008
- 稿件说明：
移动端阅览
LU Wen-ke, ZHU Chang-chun, LIU Qing-hong, et al. Study of Triple-Transition-Reflection Signal for Wavelet Transform Element of SAW Type[J]. Acta Electronica Sinica, 2008, 36(2): 346-349.
DOI：

LU Wen-ke, ZHU Chang-chun, LIU Qing-hong, et al. Study of Triple-Transition-Reflection Signal for Wavelet Transform Element of SAW Type[J]. Acta Electronica Sinica, 2008, 36(2): 346-349. DOI：

摘要

本文提出了用同相位法减小三次行程反射信号的方法.当信号频率与叉指换能器中心频率相等

并且主信号的相位等于三次行程反射信号的相位时

从可达到减小三次行程反射信号的影响.并且探讨了双接收叉指换能器并联法

要求双接收叉指换能器要完全对称

否则声表面波式小波变换器件频率特性曲线不光滑.

Abstract

The method of reducing triple-transition reflection signal with the same phase method is proposed in the paper.When the frequency of the signal equals the center frequency of iterdigital transducer (IDT)

the phase of the main signal equals the phase of triple-transition reflection signal

so that the triple-transition reflection signal is reduced.And the parallel method of the double receiving IDTs is studied.The double receiving IDTs are absolutely symmetrical

otherwise the frequency characteristic curve of wavelet transform element of SAW type is not smooth.

关键词

Keywords

references

Views

737

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Study of Insertion Loss for Wavelet Transform Element of New SAW Type

Related Author

LU Wen-ke

ZHU Chang-chun

LIU Jun-hua

FANG Jian-an

WEN Chang-bao

Related Institution

School of Electronics and Information Engineering,Xi'an Jiaotong University,Xi' an

School of Information Science and TechnologyDonghua UniversityShanghai 200051China

School of Electronics and Information EngineeringXi'an Jiaotong UniversityXi'anShaanxi 710049China

⁰