Sensor Placement for Underwater Source Localization With Fixed Distances

被引:9
|
作者
Fang, Xinpeng [1 ]
Yan, Weisheng [2 ]
Chen, Weisheng [1 ]
机构
[1] Xidian Univ, Sch Aerosp Sci & Technol, Xian 710071, Peoples R China
[2] Northwestern Polytech Univ, Sch Marine Sci & Technol, Xian 710072, Peoples R China
基金
中国国家自然科学基金;
关键词
Evaluation criterion; fixed distances; optimal sensor placement; source localization; TARGET LOCALIZATION; OBSERVABILITY;
D O I
10.1109/LGRS.2016.2588518
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
Source localization is a fundamental problem in underwater wireless sensor networks. From the observability analysis, we know that the sensor placement can significantly affect the localization performance. This letter is concerned with the optimal sensor placement for underwater source localization, and a parameter is introduced into the measurement model to represent the distance-dependent noise. The evaluation criterion used to solve the optimal placement is built by the Cramer-Rao lower bound theory. Subsequently, we mainly discuss the case when the distances between the sensors and the source are fixed, and the optimal sensor placement is affected by the relative magnitude of the distances.
引用
收藏
页码:1379 / 1383
页数:5
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