DOI: 10.3724/SP.J.1146.2013.00120

Journal of Electronics & Information Technology (电子与信息学报) 2013/35:12 PP.2954-2959

Improved Propagator Method-based Joint TOA and DOA Estimation in Impulse Radio Ultra WideBand

An improved Propagator Method (PM) is proposed for joint Time-Of-Arrival (TOA) and Direction- Of-Arrival (DOA) estimation in Impulse Radio Ultra WideBand (IR-UWB) system. After modeling the received signal in frequency domain, the proposed algorithm estimates the TOA parameters in two antennas, and obtains the DOA parameters via the difference of the TOAs between the two antennas, thereby gains the joint TOA and DOA estimation. The proposed algorithm can obtain the closed-form solutions of the TOA and DOA parameters without spectral peak searching and these solutions can automatically get paired, thus significantly reduces the complexity. An amount of simulation experiments about the proposed algorithm and the comparisons with the existing algorithms are given. Simulation results verify the practicability, robustness and superiority of the proposed algorithm.

Key words:Wireless communication,Impulse Radio Ultra WideBand (IR-UWB),Propagator Method (PM),Time-Of-Arrival (TOA),Direction-Of-Arrival (DOA)

ReleaseDate:2014-07-21 17:04:36