计算机工程与应用 ›› 2008, Vol. 44 ›› Issue (18): 147-149.

• 数据库、信号与信息处理 • 上一篇    下一篇

基于小波包的去噪方法在地雷识别中的应用

吴建斌1,2,周辉林3,田 茂2   

  1. 1.华中师范大学 信息技术系,武汉 430079
    2.武汉大学 电子信息学院,武汉 430079
    3.南昌大学 电子信息学院,南昌 330031
  • 收稿日期:2007-09-19 修回日期:2007-11-19 出版日期:2008-06-21 发布日期:2008-06-21
  • 通讯作者: 吴建斌

Based on wavelet packet de-noise method implemented in landmine recognition

WU Jian-bin1,2,ZHOU Hui-lin3,TIAN Mao2   

  1. 1.Department of Information Technologic,Huazhong Normal University,Wuhan 430079,China
    2.School of Electronic Information,Wuhan University,Wuhan 430079,China
    3.School of Electronic Information,Nanchang University,Nanchang 330031,China
  • Received:2007-09-19 Revised:2007-11-19 Online:2008-06-21 Published:2008-06-21
  • Contact: WU Jian-bin

摘要: 作为一种新的探雷方法,探地雷达在探雷领域得到了广泛的应用。由于雷达回波信号包含有很多杂散信号,目标信号很容易被强噪声信号所淹没,为了提高雷达回波信号的信噪比,有利于地雷的识别和检测,提出了一种基于信息熵的最优基选择与小波包阈值去噪相结合的方法对回波信号进行杂波抑制,采用该方法对DeTeC的数据进行分析的实验结果表明,该方法在有效地去除了直达波的同时,抑制了背景噪声,分离出目标信号。

Abstract: As a new exploration method,Ground Penetrating Radar(GPR) is used in the landmine exploration field.However,in the GPR echo signal,there are some noises and weak object echo signal are often obscured with the strong interference signals.In order to improve the signal-to-noise and identifying the landmine,a new method based on information entropy is presented,the method combine with the wavelet packet de-noise method.The experiment results show the direct wave and background noise can be effective reduced and the object signal can be extracted when the methods are adopted.