LIU Zhaoting, LIU Zhong. Automatic Pairing 2-D Direction Estimation Using Uniformly but Sparsely Spaced Electromagnetic Vector Sensor[J]. Chinese Journal of Electronics, 2012, 21(3): 505-509.
Citation: LIU Zhaoting, LIU Zhong. Automatic Pairing 2-D Direction Estimation Using Uniformly but Sparsely Spaced Electromagnetic Vector Sensor[J]. Chinese Journal of Electronics, 2012, 21(3): 505-509.

Automatic Pairing 2-D Direction Estimation Using Uniformly but Sparsely Spaced Electromagnetic Vector Sensor

  • Received Date: 2010-01-01
  • Rev Recd Date: 2011-09-01
  • Publish Date: 2012-07-25
  • A new polynomial-rooting-based algorithm with two parallel uniform linear arrays of dipole-triads is proposed for estimating two dimensional (2-D) Directions of arrival (DOAs) of multiple source signals. The proposed algorithm derives the direction cosine estimates along xaxis and y-axis, successively, from polynomial roots and eigenvectors associated with the roots. When the intervector sensor spacing exceeds a half-wavelength, the derived direction cosine estimates are ambiguous. Fortunately, the eigenvectors can also be straightforwardly used to yield dipole-triad's manifold estimates, thus the ambiguities can be resolved using the manifold estimates. Unlike other existing ESPRIT-based algorithm, our algorithm can achieve automatic pairing without any additional processing. Numerical examples are presented to verify the effectiveness of the proposed method.
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      沈阳化工大学材料科学与工程学院 沈阳 110142

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