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High-Resolution and Robust One-Bit Direct-of-Arrival Estimation via Reweighted Atomic Norm Estimation.

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Summary
This summary is machine-generated.

This study introduces a novel method for high-resolution direction-of-arrival (DOA) estimation using one-bit quantization. The new approach improves upon existing atomic norm minimization techniques for more accurate and robust signal localization.

Keywords:
atomic norm minimizationdirection-of-arrival estimationone-bit quantization

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Area of Science:

  • Signal Processing
  • Array Signal Processing

Background:

  • One-bit quantization offers a low-cost, low-power solution for direction-of-arrival (DOA) estimation.
  • Existing atomic norm minimization algorithms for one-bit DOA estimation face resolution limitations due to suboptimal trace function approximations.

Purpose of the Study:

  • To enhance the resolution capabilities of one-bit DOA estimation algorithms.
  • To address the limitations of current atomic norm minimization methods in one-bit DOA estimation.

Main Methods:

  • Application of the log-det heuristic to approximate the atomic norm minimization problem.
  • Proposal of a reweighted binary atomic norm minimization with noise assumption constraints.
  • Utilizing the alternating direction method of multipliers (ADMM) algorithm for optimization.

Main Results:

  • The proposed algorithm effectively improves the resolution in one-bit DOA estimation.
  • Simulations demonstrate enhanced resolution performance compared to existing methods.

Conclusions:

  • The developed reweighted binary atomic norm minimization approach provides a robust and high-resolution solution for one-bit DOA estimation.
  • This work advances the field by overcoming resolution constraints in low-power DOA systems.