Three-Dimension Localization of Wideband Sources Using Sensor Network  

作　　者：ZHANG Yong HE Peiyu PAN Fan 

机构地区：[1]School of Electronics and Information Engineering,Sichuan University,Chengdu 610061,China

出　　处：《Chinese Journal of Electronics》2017年第6期1302-1307,共6页电子学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.61071159)

摘　　要：Usually source localization using sensor networks requires many sensors to localize a few number of sources, and it is still very troublesome to deal with coherent sources. When the three-dimensional(3-D) space are considered, the localization will become more difficult.A new approach is proposed to localize 3-D wideband coherent sources based on distributed sensor network, which consists of two nodes and each node contains only two sensors. Direction-of-arrival(DOA) estimation is performed at each node by employing a new noise subspace proposed.Combining the pattern matching idea and the prior geometrical information of sources, a cost function is constructed to estimate the rough positions. A rotational projection algorithm is proposed to estimate the heights of sources and correct the rough positions, and consequently the localization of 3-D sources could be achieved. Numerical examples are provided to demonstrate the effectiveness of this approach.Usually source localization using sensor networks requires many sensors to localize a few number of sources, and it is still very troublesome to deal with coherent sources. When the three-dimensional（3-D） space are considered, the localization will become more difficult.A new approach is proposed to localize 3-D wideband coherent sources based on distributed sensor network, which consists of two nodes and each node contains only two sensors. Direction-of-arrival（DOA） estimation is performed at each node by employing a new noise subspace proposed.Combining the pattern matching idea and the prior geometrical information of sources, a cost function is constructed to estimate the rough positions. A rotational projection algorithm is proposed to estimate the heights of sources and correct the rough positions, and consequently the localization of 3-D sources could be achieved. Numerical examples are provided to demonstrate the effectiveness of this approach.

关 键 词：Part principal angle free(P2AF) subspace Wideband coherent DOA Sensor network 3-D localization 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]