|
|
Improved Propagator Method-based Joint TOA and DOA Estimation in Impulse Radio Ultra WideBand |
Wang Fang-qiu Zhang Xiao-fei |
College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
|
|
Abstract 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.
|
Received: 22 January 2013
|
|
Corresponding Authors:
Wang Fang-qiu
E-mail: wangfangqiu.2008@163.com
|
|
|
|
|
|
|