东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2010, Vol. 31 ›› Issue (11): 1648-1651+1656.DOI: -

• 论著 • 上一篇    下一篇

一类基于最小二乘法的声发射源组合定位算法

康玉梅;刘建坡;李海滨;魏晨慧;   

  1. 东北大学资源与土木工程学院;辽宁建发建筑工程有限公司;
  • 收稿日期:2013-06-20 修回日期:2013-06-20 出版日期:2010-11-15 发布日期:2013-06-20
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50874024,50934006);;

An AE source location combination algorithm based on least square method

Kang, Yu-Mei (1); Liu, Jian-Po (1); Li, Hai-Bin (2); Wei, Chen-Hui (1)   

  1. (1) School of Resources and Civil Engineering, Northeastern University, Shenyang 110004, China; (2) Liaoning Jianfa Construction Engineering Co., Ltd., Liaoyang 111000, China
  • Received:2013-06-20 Revised:2013-06-20 Online:2010-11-15 Published:2013-06-20
  • Contact: Kang, Y.-M.
  • About author:-
  • Supported by:
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摘要： 介绍了声发射源时差定位方法的基本原理及其常用的声发射源定位方法.针对声发射源三维定位常规算法中初始值的选取影响算法收敛速度和定位精度的问题,充分利用最小二乘算法的估计特性,改进定位算法,提出一类基于最小二乘法的Geiger优化迭代组合定位算法.数值仿真算例表明:该方法能有效解决迭代法的初始值问题,保证算法的收敛并且提高迭代算法的收敛速度.

关键词: 声发射, 源定位, 三维定位, 最小二乘法, 组合算法

Abstract: The location of AE(acoustic emission) source is an important task of acoustic emission monitoring. The basic principle of time difference of arrival(TDOA) location and conventional relevant methods to locate the acoustic emission source are described. Since the choice of initial value affects convergence rate and location accuracy in the 3-D algorithm of AE source location, a new Geiger iterative combination algorithm taking fully the advantage of estimation of the least square method is proposed to optimize the location. Numerical simulation showed that the algorithm proposed can effectively solve the problem of initial value for iteration and ensure the algorithm convergence with convergence rate improved.

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