Journal of Systems Engineering and Electronics

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Wideband direction-of-arrival estimation based on cubic spline function

Hongqi Yu1,2,*, David Day-Uei Li2, Kun Zhang3, Jietao Diao1, and Haijun Liu1   

  1. 1. School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China;
    2. Centre for Biophotonics, Strathclyde Institute of Pharmacy & Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, UK;
    3. College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China
  • Online:2015-08-25 Published:2010-01-03

Abstract:

A new direction-of-arrival (DOA) estimation algorithm for wideband sources is introduced. The new method obtains the output of the virtual arrays in the signal bandwidth using cubic spline function interpolation techniques. The narrowband highresolution algorithm is then used to get the DOA estimation. This
technique does not require any preliminary knowledge of DOA angles. Simulation results demonstrate the effectiveness of the method.