Title :
A Non-coherent UWB Direct Chaotic Indoor Positioning System using Fuzzy Logic Algorithm
Author :
Lee, Sang Yub ; Yang, Wan Chul
Author_Institution :
Wireless Solution Lab., Samsung Electro-Mech. Co. Ltd., Suwon
Abstract :
Location positioning of asset within a network is an attractive feature with various applications, especially in indoor environments. The conventional system like GPS can know the exact position in outdoor areas but is hard to apply in indoor environments because the GPS system is having some difficulties to measure precision distances in indoor areas. Such a demand is met by the standard task group, IEEE 802.15.4a. Several methods, that is, pulse, chirp and chaotic communications have been proposed so far to satisfy the requirements of the standard. Among them, ultra wideband direct chaotic communications has advantageous features such as low hardware complexity, low cost, lower power consumption and flexible frequency band plan. In this paper, the feasibility of the ranging system using non-coherent chaotic transceiver is investigated by designing and implementing of the system. And their performance is proved by conducting location experiments where the fuzzy logic algorithm is applied to mitigate the NLOS error in real indoor environments.
Keywords :
Global Positioning System; chaotic communication; fuzzy logic; indoor radio; personal area networks; transceivers; ultra wideband communication; GPS; IEEE 802.15.4a; NLOS error; direct chaotic indoor positioning system; flexible frequency band plan; fuzzy logic algorithm; hardware complexity; location positioning; noncoherent UWB; noncoherent chaotic transceiver; ultra wideband direct chaotic communications; Area measurement; Chaos; Chaotic communication; Chirp; Communication standards; Fuzzy logic; Global Positioning System; Indoor environments; Position measurement; Ultra wideband technology; Chaotic and Fuzzy Logic; Location; OOK Receiver; Positioning; Ranging; UWB;
Conference_Titel :
Advanced Communication Technology, The 9th International Conference on
Conference_Location :
Gangwon-Do
Print_ISBN :
978-89-5519-131-8
DOI :
10.1109/ICACT.2007.358769