DOA estimation for a multi-frequency signal using widely-spaced sensors

Tarig Ballal*, C. J. Bleakley

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

6 Scopus citations


The estimation of sub-sample time-delay from the phase of the cross-power spectrum (CPS) of signals received by widely-spaced receivers requires unwrapped phase. Conventional phase unwrapping methods require a continuous CPS that starts at zero frequency or at a frequency with a known unwrapped phase. A novel phase unwrapping method is proposed herein that is capable of carrying out the task without these requirements. The proposed method is applied to direction-of-arrival (DOA) estimation for a bandpass signal. a case that conventional methods are unable to handle. Analytical performance and experimental results confirm the effectiveness of the proposed method.

Original languageEnglish (US)
Pages (from-to)691-695
Number of pages5
JournalEuropean Signal Processing Conference
StatePublished - 2010
Externally publishedYes
Event18th European Signal Processing Conference, EUSIPCO 2010 - Aalborg, Denmark
Duration: Aug 23 2010Aug 27 2010

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering


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