Ambiguity Resolution for Phase-Based 3-D Source Localization under Fixed Uniform Circular Array

@inproceedings{Chen2017AmbiguityRF,
  title={Ambiguity Resolution for Phase-Based 3-D Source Localization under Fixed Uniform Circular Array},
  author={Xin Chen and Zhen Liu and Xizhang Wei},
  booktitle={Sensors},
  year={2017}
}
Under fixed uniform circular array (UCA), 3-D parameter estimation of a source whose half-wavelength is smaller than the array aperture would suffer from a serious phase ambiguity problem, which also appears in a recently proposed phase-based algorithm. In this paper, by using the centro-symmetry of UCA with an even number of sensors, the source's angles and range can be decoupled and a novel algorithm named subarray grouping and ambiguity searching (SGAS) is addressed to resolve angle… CONTINUE READING