Research on DOA estimation of nonstationary signal based on fractional Fourier transform

Yunchao Zhu; Kunde Yang; Hui Li; Feiyun Wu; Qiulong Yang; Runze Xue

doi:10.1109/OCEANSKOBE.2018.8559388

Research on DOA estimation of nonstationary signal based on fractional Fourier transform

Yunchao Zhu, Kunde Yang, Hui Li, Feiyun Wu, Qiulong Yang, Runze Xue

Ocean Institute

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

—In this paper, to estimate the DOA of nonstationary linear frequency modulation(LFM) signal in practical underwater environment, a method of DOA estimation based on fractional Fourier transform (FrFT) is investigated. Firstly, the transformation characteristics of FrFT on LFM signal are investigated. Secondly, the DOA estimation method based on FrFT is performed by following the thread of DOA estimation of narrowband signal, and the effect of focus performance of LFM signal in fractional Fourier (FrF) domain on DOA estimation is obtained through numerical simulations, which benefits the practical application of the method in underwater environment. Finally, an active detection experiment of DOA estimation by FrFT is conducted, which demonstrate that the method has a lower detection threshold and wider detection filed range compared with those in frequency domain.

Original language	English
Title of host publication	2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781538616543
DOIs	https://doi.org/10.1109/OCEANSKOBE.2018.8559388
State	Published - 4 Dec 2018
Event	2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018 - Kobe, Japan Duration: 28 May 2018 → 31 May 2018

Publication series

Name	2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018

Conference

Conference	2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018
Country/Territory	Japan
City	Kobe
Period	28/05/18 → 31/05/18

Keywords

DOA estimation
Fractional Fourier transform
Nonstationary signal
Underwater acoustic

Access to Document

10.1109/OCEANSKOBE.2018.8559388

Cite this

Zhu, Y., Yang, K., Li, H., Wu, F., Yang, Q., & Xue, R. (2018). Research on DOA estimation of nonstationary signal based on fractional Fourier transform. In 2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018 Article 8559388 (2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/OCEANSKOBE.2018.8559388

@inproceedings{a76f00a2ba8c485494a5fe85baa55861,

title = "Research on DOA estimation of nonstationary signal based on fractional Fourier transform",

abstract = "—In this paper, to estimate the DOA of nonstationary linear frequency modulation(LFM) signal in practical underwater environment, a method of DOA estimation based on fractional Fourier transform (FrFT) is investigated. Firstly, the transformation characteristics of FrFT on LFM signal are investigated. Secondly, the DOA estimation method based on FrFT is performed by following the thread of DOA estimation of narrowband signal, and the effect of focus performance of LFM signal in fractional Fourier (FrF) domain on DOA estimation is obtained through numerical simulations, which benefits the practical application of the method in underwater environment. Finally, an active detection experiment of DOA estimation by FrFT is conducted, which demonstrate that the method has a lower detection threshold and wider detection filed range compared with those in frequency domain.",

keywords = "DOA estimation, Fractional Fourier transform, Nonstationary signal, Underwater acoustic",

author = "Yunchao Zhu and Kunde Yang and Hui Li and Feiyun Wu and Qiulong Yang and Runze Xue",

note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018 ; Conference date: 28-05-2018 Through 31-05-2018",

year = "2018",

month = dec,

day = "4",

doi = "10.1109/OCEANSKOBE.2018.8559388",

language = "英语",

series = "2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

booktitle = "2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018",

}

Zhu, Y, Yang, K, Li, H, Wu, F, Yang, Q & Xue, R 2018, Research on DOA estimation of nonstationary signal based on fractional Fourier transform. in 2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018., 8559388, 2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018, Institute of Electrical and Electronics Engineers Inc., 2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018, Kobe, Japan, 28/05/18. https://doi.org/10.1109/OCEANSKOBE.2018.8559388

Research on DOA estimation of nonstationary signal based on fractional Fourier transform. / Zhu, Yunchao; Yang, Kunde; Li, Hui et al.
2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018. Institute of Electrical and Electronics Engineers Inc., 2018. 8559388 (2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Research on DOA estimation of nonstationary signal based on fractional Fourier transform

AU - Zhu, Yunchao

AU - Yang, Kunde

AU - Li, Hui

AU - Wu, Feiyun

AU - Yang, Qiulong

AU - Xue, Runze

PY - 2018/12/4

Y1 - 2018/12/4

N2 - —In this paper, to estimate the DOA of nonstationary linear frequency modulation(LFM) signal in practical underwater environment, a method of DOA estimation based on fractional Fourier transform (FrFT) is investigated. Firstly, the transformation characteristics of FrFT on LFM signal are investigated. Secondly, the DOA estimation method based on FrFT is performed by following the thread of DOA estimation of narrowband signal, and the effect of focus performance of LFM signal in fractional Fourier (FrF) domain on DOA estimation is obtained through numerical simulations, which benefits the practical application of the method in underwater environment. Finally, an active detection experiment of DOA estimation by FrFT is conducted, which demonstrate that the method has a lower detection threshold and wider detection filed range compared with those in frequency domain.

AB - —In this paper, to estimate the DOA of nonstationary linear frequency modulation(LFM) signal in practical underwater environment, a method of DOA estimation based on fractional Fourier transform (FrFT) is investigated. Firstly, the transformation characteristics of FrFT on LFM signal are investigated. Secondly, the DOA estimation method based on FrFT is performed by following the thread of DOA estimation of narrowband signal, and the effect of focus performance of LFM signal in fractional Fourier (FrF) domain on DOA estimation is obtained through numerical simulations, which benefits the practical application of the method in underwater environment. Finally, an active detection experiment of DOA estimation by FrFT is conducted, which demonstrate that the method has a lower detection threshold and wider detection filed range compared with those in frequency domain.

KW - DOA estimation

KW - Fractional Fourier transform

KW - Nonstationary signal

KW - Underwater acoustic

UR - http://www.scopus.com/inward/record.url?scp=85060292080&partnerID=8YFLogxK

U2 - 10.1109/OCEANSKOBE.2018.8559388

DO - 10.1109/OCEANSKOBE.2018.8559388

M3 - 会议稿件

AN - SCOPUS:85060292080

T3 - 2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018

BT - 2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018

Y2 - 28 May 2018 through 31 May 2018

ER -

Research on DOA estimation of nonstationary signal based on fractional Fourier transform

Abstract

Publication series

Conference

Keywords

Access to Document

Other files and links

Fingerprint

Cite this