%0 Journal Article
%T Landweber iterative regularization for nearfield acoustic holography
%A Chuanxing Bi
%A Xinzhao Chen
%A Rong Zhou
%A Jian Chen
%A <br>BI
%A Chuanxing
%A CHEN
%A Xinzhao
%A ZHOU
%A Rong
%A CHEN
%A Jian
%J 科学通报(英文版)
%D 2006
%I 
%X On the basis of the distributed source boundary point method (DSBPM)-based nearfield acoustic holography (NAH), Landweber iterative regularization method is proposed to stabilize the NAH reconstruction process, control the influence of measurement errors on the reconstructed results and ensure the validity of the reconstructed results. And a new method, the auxiliary surface method, is pro- posed to determine the optimal iterative number for optimizing the regularization effect. Here, the optimal number is determined by minimizing the relative error between the calculated pressure on the auxiliary surface corresponding to each iterative number and the measured pressure. An experiment on a speaker is investigated to demonstrate the high sensitivity of the reconstructed results to measurement errors and to validate the chosen method of the optimal iterative number and the Landweber iterative regularization method for controlling the influence of measurement errors on the reconstructed results.
%K nearfield acoustic holography
%K iterative method
%K bound- ary point method
%K regularization<br>近场声全息摄影术
%K 迭代方法
%K 边界点方法
%K 正则化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=1B53F8E9DF49D1D33CA5C6FA23C2E9D7&yid=37904DC365DD7266&vid=987EDA49D8A7A635&iid=708DD6B15D2464E8&sid=2A46E9718B53247E&eid=41685CA5511D97F7&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=0&reference_num=23