Journal of Systems Engineering and Electronics ›› 2022, Vol. 33 ›› Issue (4): 887-895.doi: 10.23919/JSEE.2022.000086

• ELECTRONICS TECHNOLOGY • Previous Articles     Next Articles

Joint angle and frequency estimation for linear array: an extended DOA-matrix method

Luo CHEN1,2(), Xiangrui DAI1,*(), Xiaofei ZHANG1()   

  1. 1 College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
    2 The 28th Research Institute of China Electronics Technology Group Corporation, Nanjing 210007, China
  • Received:2020-02-26 Accepted:2022-04-28 Online:2022-08-30 Published:2022-08-30
  • Contact: Xiangrui DAI E-mail:njxnd88@126.com;xr.dai@foxmail.com;zhangxiaofei@nuaa.edu.cn
  • About author:|CHEN Luo was born in 1986. He received his B.S. degree from Nanchang University, Nanchang, China, in 2007. He received his M.S. degree in internet computing from University of Abertay Dundee, Dundee, UK, in 2010. He is currently pursuing his Ph.D. degree at the College of Electronics and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China. He is also working at the 28th Research Institute of China Electronics Technology Group Corporation, Nanjing , China. His research interests include array signal processing and communication signal processing. E-mail: njxnd88@126.com||DAI Xiangrui was born in 1997. He received his B.E. degree from Anhui University, Hefei, China, in 2018. He is currently pursuing his M.S. degree in electronic and communications engineering with the College of Electronic and Information Engineering at Nanjing University of Aeronautics and Astronautics, Nanjing, China. His current research interests include array signal processing and communication signal processing. E-mail: xr.dai@foxmail.com||ZHANG Xiaofei was born in 1977. He received his M.S. degree from Wuhan University, Wuhan, China, in 2001. He received his Ph.D. degree in communication and information systems from Nanjing University of Aeronautics and Astronautics in 2005. He is a full professor of the College of Electronics and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China. His research focuses on array signal processing and communication signal processing. E-mail: zhangxiaofei@nuaa.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (61971217;61971218;61631020), Jiangsu Natural Science Foundation (BK20200444), Jiangsu Key Research and Development Project (BE2020101), and the Fund of Sonar Technology Key Laboratory.

Abstract:

An approach for joint direction of arrival (DOA) angle and frequency estimation for a linear array is investigated in this paper. Specifically, we make the utmost of the autocorrelation and cross-correlation information to propose an extended DOA-matrix (EDOAM) method. Subsequently, we obtain the auto-paired angle and frequency estimates by the eigenvalues and the corresponding eigenvectors of the novel DOA matrix. Furthermore, the proposed method surpasses the DOA-matrix method which partly ignores the autocorrelation and cross-correlation information. Finally, the proposed method works well for both uniform and non-uniform linear arrays. The simulation consequences indicate the superiority of our proposed approach.

Key words: direction of arrival (DOA), frequency, linear array, time delay, extended DOA-matrix method