Single-Snapshot Time-Domain Direction of Arrival Estimation under Bayesian Group-Sparse Hypothesis and Vector Sensor Antennas

Authors

  • Marco Muzi 1Department of Information Engineering, Electronics, and Telecommunications, “La Sapienza”, University of Rome, Via Eudossiana 18, 00184, Rome, Italy. ,2Engineering departmental faculty, Campus Bio-Medico University of Rome, Via Alvaro del Portillo 21, 00128, Rome, Italy.
  • Nicola Tedeschi Department of Information Engineering, Electronics, and Telecommunications, “La Sapienza”, University of Rome, Via Eudossiana 18, 00184, Rome, Italy.
  • Luca Scorrano Elettronica Group, Via Tiburtina Valeria Km 13.700, 00131, Rome, Italy.
  • Vincenzo Ferrara Department of Information Engineering, Electronics, and Telecommunications, “La Sapienza”, University of Rome, Via Eudossiana 18, 00184, Rome, Italy.
  • Fabrizio Frezza Department of Information Engineering, Electronics, and Telecommunications, “La Sapienza”, University of Rome, Via Eudossiana 18, 00184, Rome, Italy.

Keywords:

Bayesian optimization, DOA estimation, group-sparsity norm, single snapshot signal, vector sensor antennas

Abstract

In this work, an optimal single-snapshot, time domain, group-sparse optimal Bayesian DOA estimation method is proposed and tested on a vector sensors antenna system. Exploiting the group-sparse property of the DOA and the Bayesian formulation of the estimation problem, we provide a fast and accurate DOA estimation algorithm. The proposed estimation method can be used for different steering matrix formulations since the optimal standardization matrix is computed directly from the knowledge of the steering matrix and noise covariance matrix. Thanks to this, the algorithm does not requires any kind of calibration or human supervision to operate correctly. In the following, we propose the theoretical basis and details about the estimation algorithm and a possible implementation based on FISTA followed by the results of our computer simulations test.

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References

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Published

2021-07-22

How to Cite

[1]
Marco Muzi, Nicola Tedeschi, Luca Scorrano, Vincenzo Ferrara, and Fabrizio Frezza, “Single-Snapshot Time-Domain Direction of Arrival Estimation under Bayesian Group-Sparse Hypothesis and Vector Sensor Antennas”, ACES Journal, vol. 33, no. 08, pp. 822–827, Jul. 2021.

Issue

2018: Vol 33 Iss 8

Section

Articles