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Efficient elliptic localization in the presence of antenna position uncertainties and clock parameter imperfections

Amiri, R ; Sharif University of Technology | 2019

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  1. Type of Document: Article
  2. DOI: 10.1109/TVT.2019.2933406
  3. Publisher: Institute of Electrical and Electronics Engineers Inc , 2019
  4. Abstract:
  5. In this paper, an algebraic solution for elliptic localization in multiple-input multiple-output (MIMO) radar systems is proposed by taking the uncertainties in antenna positions and their clock parameters into account. Through nonlinear transformation and multi-stage processing, the target position is estimated in closed-form by successively utilizing the weighted least squares estimator. Theoretical analysis demonstrates that the proposed method is able to attain the Cramer-Rao lower bound (CRLB) performance under mild Gaussian error. The conditions for achieving the CRLB are derived as well. The numerical simulations confirm the analytical results and demonstrate significant performance improvement of the proposed estimator in comparison with the state-of-the-art methods. © 1967-2012 IEEE
  6. Keywords:
  7. Cramer-Rao lower bound (CRLB) ; Multiple-input multiple-output (MIMO) radar ; Target localization ; Time delay measurement ; Clocks ; Cramer-Rao bounds ; Feedback control ; Mathematical transformations ; MIMO radar ; Numerical methods ; Radar antennas ; Radar measurement ; Radar target recognition ; Telecommunication repeaters ; Trellis codes ; Cramer-rao lower bound ; Multiple input multiple output (MIMO) radars ; Time-delay measurements ; Weighted least squares estimation ; MIMO systems
  8. Source: IEEE Transactions on Vehicular Technology ; Volume 68, Issue 10 , 2019 , Pages 9797-9805 ; 00189545 (ISSN)
  9. URL: https://ieeexplore.ieee.org/document/8789498