Method of Ultrasonic Signal De-noising Based on Lifting Wavelet Improved Threshold

被引：0
|
作者：
Bi Zhouyang [1 ]
Chen Jianhui [1 ]
Ju Wenjie [1 ]
Wang Ming [1 ]
Li Jichen [1 ]
机构：
[1] Mech Engn Coll Shijiazhuang, Inst Nanotechnol & Micro Syst, Shijiazhuang 050003, Peoples R China
来源：
APPLIED SCIENCE, MATERIALS SCIENCE AND INFORMATION TECHNOLOGIES IN INDUSTRY | 2014年 / 513-517卷
关键词：
Lifting Wavelet; Threshold function; Ultrasonic signal; Wavelet threshold de-noising;
D O I：
10.4028/www.scientific.net/AMM.513-517.3818
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The article established the mathematical model of ultrasonic flaw echo signals. First, the basic theory of wavelet transform is introduced, the principle of the wavelet threshold de-noising method is analyzed; Then on the basis of soft and hard threshold function, the paper proposes a method based on lifting wavelet de-noising. And from two aspects of signal-to-noise ratio (SNR) and mean square error (MSE) the de-noising performance is analysed. The results show that the method improved the shortcomings of soft and hard threshold de-noising method, and got a better de-noising performance and higher signal-to-noise ratio. So in real-time signal de-noising aspect the lifting wavelet has a very good application prospect.
引用
收藏
页码：3818 / 3821
页数：4
相关论文
共 50 条
  • [1] The ultrasonic signal de-noising method based on an improved wavelet threshold function
    Wang, Qingxuan
    Dong, Aihua
    [J]. FRONTIERS OF MANUFACTURING SCIENCE AND MEASURING TECHNOLOGY, PTS 1-3, 2011, 230-232 : 564 - 568
  • [2] Study on MEMS Gyro Signal De-noising Based on Improved Wavelet Threshold Method
    Shi, Yongsheng
    Gao, Zhifeng
    [J]. ADVANCES IN MECHATRONICS AND CONTROL ENGINEERING II, PTS 1-3, 2013, 433-435 : 1558 - 1562
  • [3] Research on the Method of ECG De-noising Based on Improved Lifting Wavelet
    Guo, Tongying
    Gao, Yuhan
    Zhang, Hui
    Wang, Haichen
    [J]. INTERNATIONAL CONFERENCE ON ELECTRICAL AND CONTROL ENGINEERING (ICECE 2015), 2015, : 880 - 885
  • [4] De-noising processing of GPS signal based on lifting wavelet
    Zhu Xijun
    Zhao Jianlin
    Li Zhimin
    [J]. PROCEEDINGS OF THE 26TH CHINESE CONTROL CONFERENCE, VOL 3, 2007, : 155 - +
  • [5] De-noising technology of radar life signal based on lifting wavelet transform and improved soft threshold function
    [J]. 1600, Chinese Optical Society (45):
  • [6] Lifting Wavelet De-noising Method with Dual-Threshold Based on PSO Algorithm
    Liu Sheng
    Zhang Qing-chun
    Gu Ming-ming
    [J]. 2013 32ND CHINESE CONTROL CONFERENCE (CCC), 2013, : 3680 - 3684
  • [7] An Improved Wavelet Threshold De-Noising Method and Its Application
    Ji Ce
    Lu Xue-liang
    Tang Bao-cheng
    [J]. PROCEEDINGS OF THE 2012 24TH CHINESE CONTROL AND DECISION CONFERENCE (CCDC), 2012, : 950 - 953
  • [8] An Improved Threshold Function for Wavelet De-noising
    Li, Zhong
    Zhang, Dong-xue
    [J]. ADVANCES IN COMPUTER SCIENCE, INTELLIGENT SYSTEM AND ENVIRONMENT, VOL 1, 2011, 104 : 265 - +
  • [9] THE DE-NOISING METHOD OF THRESHOLD FUNCTION BASED ON WAVELET
    Yang, Kun
    Deng, Cai-Xia
    Chen, Yu
    Xu, Li-Xiang
    [J]. 2014 INTERNATIONAL CONFERENCE ON WAVELET ANALYSIS AND PATTERN RECOGNITION (ICWAPR), 2014, : 87 - 92
  • [10] Improved Wavelet Threshold for Image De-noising
    Zhang, Yang
    Ding, Weifeng
    Pan, Zhifang
    Qin, Jing
    [J]. FRONTIERS IN NEUROSCIENCE, 2019, 13
12345