Title :
A new Double Two-Way Ranging algorithm for ranging system
Author :
Kwak, Myungkyun ; Chong, Jongwha
Author_Institution :
Dept. of Electr. & Comput. Eng., Hanyang Univ., Seoul, South Korea
Abstract :
For wireless positioning system, a study on two-way ranging algorithms has been progressed to improve the accuracy of position estimates. In this paper, we propose an asynchronous Double Two-Way Ranging (D-TWR) algorithm, executing an overlapped Two-Way Ranging (TWR) effectively. In this way, the D-TWR algorithm can reduce the number of the required packets in the ranging algorithm as compared with that of the Symmetric Double Sided Two-Way Ranging (SDS-TWR) algorithm. Moreover, D-TWR can achieve more robust Time-of-Arrival (TOA) estimation than SDS-TWR by reducing the TOA estimation errors caused by clock crystal drift between two nodes.
Keywords :
distance measurement; time-of-arrival estimation; double two-way ranging algorithm; overlapped two-way ranging; position estimates; ranging system; time-of-arrival estimation; wireless positioning system; Clocks; Crystals; Delay effects; Distance measurement; Signal processing algorithms; Wireless communication; Wireless sensor networks; Ranging; SDS-TWR; ranging accuracy; sensor network; wireless positioning system;
Conference_Titel :
Network Infrastructure and Digital Content, 2010 2nd IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-6851-5
DOI :
10.1109/ICNIDC.2010.5657814
