Title :
A low-cost experimental ultra-wideband positioning system
Author :
Schroeder, Jens ; Galler, Stefan ; Kyamakya, Kyandoghere
Author_Institution :
Inst. of Commun. Eng., Hannover Univ., Germany
Abstract :
In this paper we report on the architecture and implementation status of a low-cost experimental ultra-wideband (UWB) local positioning system, designed to enable practical evaluations of UWB based positioning concepts. The mobile devices use the avalanche effect of transistors for simple generation of bi-phase pulses and are TDMA multi-user capable. After high-speed analog-to-digital conversion, the receiver is implemented in software and employs direct cross-correlation with maximum detection to localize the mobile unit via A. One direct solution and one nonlinear optimization approach are implemented. First measurement results are presented, showing accuracy in the order of decimeters.
Keywords :
analogue-digital conversion; mobile radio; time-of-arrival estimation; ultra wideband communication; analog-to-digital conversion; avalanche effect; cross-correlation method; low-cost experimental ultra-wideband positioning system; mobile devices; nonlinear optimization approach; time-difference-of-arrival algorithm; Analog-digital conversion; Communications technology; Computer architecture; Costs; Oscilloscopes; Pulse generation; Sampling methods; Software algorithms; Time division multiple access; Ultra wideband technology; TDOA; Ultra-Wideband; localization; pulse generator;
Conference_Titel :
Ultra-Wideband, 2005. ICU 2005. 2005 IEEE International Conference on
Print_ISBN :
0-7803-9397-X
DOI :
10.1109/ICU.2005.1570062
