Source Localization on Two-Dimensional Grid

被引:0
作者
Liu, Kui [1 ]
Cheng, Yang [1 ]
Li, Pan [1 ]
Singh, Tarunraj [2 ]
机构
[1] Mississippi State Univ, Mississippi State, MS 39762 USA
[2] Univ Buffalo, Buffalo, NY 14260 USA
来源
2011 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE (GLOBECOM 2011) | 2011年
关键词
localization; convex optimization; two-dimensional grid; image processing; SELECTION;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A computationally efficient algorithm is presented for locating multiple sources on a two-dimensional grid. The total number of the sources as well as their intensities and locations on the two-dimensional grid are assumed unknown and the intensities of the sources are not necessarily identical. The distribution of the source intensity on the grid, which contains all the information about the sources, is obtained by solving a convex optimization problem. With the source distribution interpreted as a two-dimensional gray-level image, the sources are determined as the centroids of the objects in the image. Given the number of sources and the source locations, the source intensities are estimated by solving a linear least-squares problem.
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页数:5
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