MATEC Web Conf.
Volume 128, 20172017 International Conference on Electronic Information Technology and Computer Engineering (EITCE 2017)
|Number of page(s)||5|
|Section||Signal & Image Processing|
|Published online||25 October 2017|
Direction-of-arrival and Range Estimation of Wideband Sources in the Near Field
1 institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang 621900, China
2 Department of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
a Corresponding author: firstname.lastname@example.org
In this letter, we address the problem of wideband sources localization in the near field of the sensor array. It is shown that the spatial sampling rate can be considered as a function of temporal frequency so that wideband sources can be represented in the spatial frequency domain. A computationally efficient localization method is then developed based on the Toeplitz matrices constructed from the frequency-dependent cross-correlation between sensors. This allows us to resolve near field sources with quite a few numbers of sensors. Indeed, the sources can be located with fewer sensors. Finally, the simulation results are presented to validate the performance of the proposed method.
© The authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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