DocumentCode :
2559457
Title :
The Internal Sensor aided Asynchronous Wireless Localization System
Author :
Park, SangYoung ; Ahn, Hyo-Sung ; Yu, Wonpil
Author_Institution :
Electron. & Telecommun. Res. Inst., Daejeon
fYear :
2007
fDate :
26-29 Aug. 2007
Firstpage :
252
Lastpage :
257
Abstract :
In this paper, we present a wireless localization technique which operates in an asynchronous manner. We also state how to improve the system´s performance using internal navigation sensors. The wireless localization system is developed based on the difference of signal´s arrival times, so-called inter-node time difference-of-arrival (ITDOA). The advantage of this ITDOA-based localization scheme is that it uses the time differences of each node (not between nodes); so the time synchronization is not required. However, sometimes far more accurate location information than that of ITDOA localization system is needed. To increase the localization accuracy of ITDOA system, we use heading angle information provided from an internal heading sensor. The simulation result shows that the accuracy of the object position estimated from internal sensor aided ITDOA system is improved about 49% compared to the ITDOA system.
Keywords :
mobility management (mobile radio); radionavigation; synchronisation; time-of-arrival estimation; wireless sensor networks; internal navigation sensor; internal sensor aided asynchronous wireless localization system; internode time difference-of-arrival; object position estimation; time synchronization; Human robot interaction; Intelligent robots; Intelligent sensors; Mechatronics; Navigation; Robot sensing systems; Sensor systems; System performance; Time measurement; Wireless sensor networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Robot and Human interactive Communication, 2007. RO-MAN 2007. The 16th IEEE International Symposium on
Conference_Location :
Jeju
Print_ISBN :
978-1-4244-1634-9
Electronic_ISBN :
978-1-4244-1635-6
Type :
conf
DOI :
10.1109/ROMAN.2007.4415089
Filename :
4415089
Link To Document :
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