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Volume 30Issue 4
Dec. 2021
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Liya Xu, Yi Ma, Jinfeng Zhang, Bin Liao. Wideband Direction-of-Arrival Estimation Based on Deep Learning[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2021, 30(4): 412-424. doi: 10.15918/j.jbit1004-0579.2021.079
Citation: Liya Xu, Yi Ma, Jinfeng Zhang, Bin Liao. Wideband Direction-of-Arrival Estimation Based on Deep Learning[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2021, 30(4): 412-424.doi:10.15918/j.jbit1004-0579.2021.079

Wideband Direction-of-Arrival Estimation Based on Deep Learning

doi:10.15918/j.jbit1004-0579.2021.079
Funds:This work was supported in part by the National Natural Science Foundation of China (No. 62101340).
More Information
  • Author Bio:

    Liya Xu(xuliya@szu.edu.cn) received the B.Eng. degree in communication engineering from Information Engineering University, Zhengzhou, China, in 2011, and received the Ph.D. degree in Underwater Acoustic Engineering with Northwestern Polytechnical University, Xi’an, China, in 2019. From April 2019 to December 2021, she is a postdoctoral researcher in the College of Information Engineering, Shenzhen University, Shenzhen, China. Her research interests include passive source localization, geoacoustic inversion, and sound propagation

    Yi Ma(617462529@qq.com) received the B.Eng. degree from Guangdong University of Petrochemical Technology in 2017 and M. Eng degree from Shenzhen University in 2021. His main research interests are array signal processing, deep learning and its applications

    Jinfeng Zhang(zhangjf@szu.edu.cn) received the Ph.D. degree in signal and information processing from Dalian University of Technology, Dalian, China, in 2017. She is currently an associate professor in the faculty of College of Electronics and Information Engineering, Shenzhen University, and she also serves as a member of the Guangdong Key Laboratory of Intelligent Information Processing, Shenzhen University. Her research interests include array signal processing and Non-Gaussian signal processing and their applications

    Bin Liao(binliao@szu.edu.cn) received the B.Eng. and M.Eng degrees from Xidian University, Xi’an, China, in 2006 and 2009, respectively, and received his Ph.D. degree from The University of Hong Kong, Hong Kong, in 2013. From September 2013 to January 2014, he was a Research Assistant with the Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong. From August 2016 to October 2016, he was a Research Scientist with the Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong. He is currently an Associate Professor in the College of Information Engineering, Shenzhen University, Shenzhen, China. He is a recipient of the Best Paper Award at the 21st International Conference on Digital Signal Processing (2016 DSP) and 22nd International Conference on Digital Signal Processing (2017 DSP). His research interests include sensor array processing, adaptive filtering, convex optimization, with applications to radar, navigation and communications. Dr. Liao is currently a member of the Sensor Array and Multichannel (SAM) Technical Committee of the IEEE Signal Processing Society. He was an Associate Editor of IEEE ACCESS from 2017 to 2019. He is currently an Associate Editor of IEEE Transactions on Aerospace and Electronic Systems, IET Signal Processing, and Multidimensional Systems and Signal Processing

  • Corresponding author:zhangjf@szu.edu.cn
  • Received Date:2021-10-28
  • Rev Recd Date:2021-11-19
  • Accepted Date:2021-11-26
  • Publish Date:2021-12-27
  • The performance of traditional high-resolution direction-of-arrival (DOA) estimation methods is sensitive to the inaccurate knowledge on prior information, including the position of array elements, array gain and phase, and the mutual coupling between the array elements. Learning-based methods are data-driven and are expected to perform better than their model-based counterparts, since they are insensitive to the array imperfections. This paper presents a learning-based method for DOA estimation of multiple wideband far-field sources. The processing procedure mainly includes two steps. First, a beamspace preprocessing structure which has the property of frequency invariant is applied to the array outputs to perform focusing over a wide bandwidth. In the second step, a hierarchical deep neural network is employed to achieve classification. Different from neural networks which are trained through a huge data set containing different angle combinations, our deep neural network can achieve DOA estimation of multiple sources with a small data set, since the classifiers can be trained in different small subregions. Simulation results demonstrate that the proposed method performs well both in generalization and imperfections adaptation.
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