Title :
A study of Q-range ambiguity in the Radio Interferometric Positioning System
Author :
Van der Merwe, David ; Grobler, Leenta ; Ferreira, Melvin
Author_Institution :
Sch. of Electr., Electron. & Comput. Eng., North-West Univ., Potchefstroom, South Africa
Abstract :
The Radio Interferometric Positioning System (RIPS) was developed by Maroti et al. for the purpose of node localization in wireless sensor networks. They theorized that RIPS would produce ambiguous measurements when distances between nodes exceeded a carrier wavelength. This paper investigates this effect. In this investigation patterns in these invalid measurements are studied and then explained by looking at the mathematics behind RIPS. Findings made, provide a characterization of ambiguity in RIPS as well as new methods to extend the range of RIPS measurements beyond one carrier wavelength.
Keywords :
distance measurement; radiowave interferometry; sensor placement; wireless sensor networks; Q-range ambiguity; RIPS; ambiguous measurements; carrier wavelength; node localization; radio interferometric positioning system; wireless sensor networks; Antenna measurements; Frequency measurement; Phase measurement; Receivers; Transmitters; Wavelength measurement; Wireless sensor networks;
Conference_Titel :
Telecommunications (ICT), 2011 18th International Conference on
Conference_Location :
Ayia Napa
Print_ISBN :
978-1-4577-0025-5
DOI :
10.1109/CTS.2011.5898960
