Thumbnail
Access Restriction
Open

Author Yin, Zhendong ♦ Cui, Kai ♦ Wu, Zhilu ♦ Yin, Liang
Source World Health Organization (WHO)-Global Index Medicus
Content type Text
Publisher Multidisciplinary Digital Publishing Institute
File Format HTM / HTML
Language English
Difficulty Level Medium
Subject Domain (in DDC) Technology ♦ Medicine & health
Abstract The major challenges for Ultra-wide Band (UWB) indoor ranging systems are the dense multipath and non-line-of-sight (NLOS) problems of the indoor environment. To precisely estimate the time of arrival (TOA) of the first path (FP) in such a poor environment, a novel approach of entropy-based TOA estimation and support vector machine (SVM) regression-based ranging error mitigation is proposed in this paper. The proposed method can estimate the TOA precisely by measuring the randomness of the received signals and mitigate the ranging error without the recognition of the channel conditions. The entropy is used to measure the randomness of the received signals and the FP can be determined by the decision of the sample which is followed by a great entropy decrease. The SVM regression is employed to perform the ranging-error mitigation by the modeling of the regressor between the characteristics of received signals and the ranging error. The presented numerical simulation results show that the proposed approach achieves significant performance improvements in the CM1 to CM4 channels of the IEEE 802.15.4a standard, as compared to conventional approaches.
Description Country affiliation: China
Author Affiliation: Yin Z ( School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin 150001, China. yinzhendong@hit.edu.cn.); Cui K ( School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin 150001, China. kaicui007@gmail.com.); Wu Z ( School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin 150001, China. wuzhilu@hit.edu.cn.); Yin L ( School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin 150001, China. ylxt2009@163.com.)
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Reading ♦ Research ♦ Self Learning
Interactivity Type Expositive
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2015-05-21
Publisher Place Switzerland
e-ISSN 14248220
Journal Sensors
Volume Number 15
Issue Number 5


Source: WHO-Global Index Medicus