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

fYear

2011

fDate

8-11 May 2011

Firstpage

412

Lastpage

415

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications (ICT), 2011 18th International Conference on

Conference_Location

Ayia Napa

Print_ISBN

978-1-4577-0025-5

Type

conf

DOI

10.1109/CTS.2011.5898960

Filename

5898960