Impact Factor :
1.025
Q1(Year 2015)
ISSN : 1026-3098
e-ISSN : 2345-3605
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Publication Information : Volume 22 - Number 3 - Successive Number 3
Type : Article
Topics of Paper : Transactions on Electrical Engineering
English Title : A Robust Acoustic Signal for Smartphone-based Indoor Ranging and Positioning
English Abstract : The acoustic signal is an important medium in communication, damage and leakage detecting, etc. They are also used in the wireless sensor network positioning in recent years. With the development of mobile communication technology, smartphone-based indoor positioning by acoustic signals becomes possible. In the indoor environment, however, acoustic signals will be interfered with by environmental noise and multipath effect. Moreover, when multiple users are positioning simultaneously, acoustic signals will interfere with each other. In order to eliminate various forms of interference, we design a robust acoustic signal for smartphone-based indoor positioning in this paper. The signal is generated by using the pseudo-random codes, Gold sequences to modulate 6 kHz cosine wave. It is detected through its auto-correlation properties in the receiver. The designed acoustic signal can resist various noises with its excellent cross-correlation characteristic. We conduct experiments on real smartphones and the results show the signals can work well in the presence of forms of interference.
English Keywords : Acoustic signal, Indoor positioning, Smartphone, Pseudo-random code, Cross-correlation
Refrences :
Number Of Pages :
From 1061 to 1067


Authors :
The AuthorAuthor SequenceOrganizationOrganization ( english )AffiliationEmailEducation
Dr. S.P. Guan 1Key Laboratory of Intelligent Information Processing in Universities of Shandong (Shandong Institute of Business and Technology), Yantai 264005, P. R. China  konexgsp@gmail.com 
Dr. J.Y. Hua 2Department of Computer Science and Technology, Nanjing University, Nanjing 210046, P. R. China  huajingyu2012@gmail.com 
S.Y. Du 3Department of Computer Science and Technology, Nanjing University, Nanjing 210046, P. R. China  shaoyong.du.cs@gmail.com 
S. Zhong
(Author)
4Department of Computer Science and Technology, Nanjing University, Nanjing 210046, P. R. China  sheng.zhong@gmail.com 
Published Issues
2016
2015
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Transactions on Chemistry and Chemical Engineering
Transactions on Computer Science & Engineering and Electrical Engineering
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2014
Transactions on Civil Engineering
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Transactions on Computer Science & Engineering and Electrical Engineering
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2013
Transactions on Civil Engineering
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