Title :
Multipath mitigation for LOS TBRE using NDB OFDM transmission and phase correlation
Author :
Wang, Dongping ; Fattouche, M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Calgary, Calgary, AB, Canada
fDate :
10/1/2010 12:00:00 AM
Abstract :
Two simple phase-based correlation methods, i.e. phase correlation and line fit phase correlation, using non-data-bearing (NDB) orthogonal frequency division multiplexing (OFDM) transmission, are proposed for line-of-sight (LOS) time-based range estimation (TBRE) in a frequency selective multipath channel based on the characteristics of the probing signal. Simulation results show that both proposed methods for NDB OFDM based TBRE have much more distinct LOS peaks than conventional correlation, leading to a better ranging accuracy.
Keywords :
OFDM modulation; correlation methods; multipath channels; OFDM; frequency selective multipath channel; line fit phase correlation; line-of-sight time-based range estimation; multipath mitigation; non-data-bearing orthogonal frequency division multiplexing transmission; phase based correlation methods; probing signal;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.1979
