Title :
UWB precision geolocation using FFT interpolation
Author :
Dogancay, Kutluyil ; Leyman, A. Rahim
Author_Institution :
Sch. of Electr. & Inf. Eng., Univ. of South Australia, Mawson Lakes, SA, Australia
Abstract :
A precision positioning algorithm employing low data rate ultra wideband (UWB) technology is proposed. The positioning algorithm utilizes cross-correlation for estimating time difference of arrival (TDOA) between UWB pulses received at multiple receivers and provides a precise location estimate of the signal source thanks to FFT interpolation. The geolocation estimate is obtained from an iterative maximum likelihood estimator implemented as a Gauss-Newton algorithm. The effectiveness of the proposed precision positioning algorithm is verified by way of computer simulations.
Keywords :
Newton method; correlation methods; fast Fourier transforms; interpolation; maximum likelihood estimation; radionavigation; ultra wideband technology; FFT interpolation; Gauss-Newton algorithm; TDOA estimation; UWB precision geolocation; cross correlation method; iterative maximum likelihood estimation; low data rate ultrawideband technology; precision positioning algorithm; time difference of arrival estimation; Bandwidth; Geology; Interpolation; Maximum likelihood estimation; Noise; Receivers;
Conference_Titel :
Signal Processing Conference, 2005 13th European
Conference_Location :
Antalya
Print_ISBN :
978-160-4238-21-1
