Integrated method of multi-target detection and DOA estimation by exploiting knowledge of beam-spectra envelope

Li Jie Zhang, Jian Guo Huang, Qun Fei Zhang

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

An integrated method of acoustic signal detection and direction-of-arrival (DOA) estimation is proposed. As exploiting the beam-spectra envelop (BE) knowledge of the spatial spectrum outputted by beam scanning system, it is named as BE method, in which, based on the results of energy detection, the 3 dB-width information of spectral peaks is used further to detect the source number in each peak, and the DOAs are estimated by 2-D Capon searching. The Qiandao Lake experimental results show that, comparing with traditional algorithms, the performance of target detection and DOA estimation is improved at lower SNRs.

Original languageEnglish
Pages (from-to)2823-2828
Number of pages6
JournalTien Tzu Hsueh Pao/Acta Electronica Sinica
Volume37
Issue number12
StatePublished - Dec 2009

Keywords

  • Acoustic signal processing
  • Direction-of-arrival estimation
  • High resolution
  • Multi-target detection
  • Source number estimation

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