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Direct Position Determination of Moving Targets Based on DOA
  • +2
  • Shuming He,
  • Yuan Jiang,
  • Lei Zhao,
  • Guorui Lin,
  • Bo Peng
Shuming He
Sun Yat-Sen University
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Yuan Jiang
Sun Yat-Sen University

Corresponding Author:[email protected]

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Lei Zhao
Sun Yat-Sen University
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Guorui Lin
Sun Yan-sen University of Medical Sciences
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Bo Peng
Jinan University
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In this letter, we focus on the problem of direct position determination (DPD) for moving targets. Compared with the traditional two-step localization methods, the DPD methods is more robust at low signal-to-noise ratio (SNR). However, to guarantee the optimal location results the computational complexity of DPD with grid search is too high, especially for moving targets. Therefore, we propose a new DPD method for moving targets with low computational complexity. First, using a proposed cost function, we obtain the position information from the received array signals directly. Second, we use the method of successional difference which averages the difference result of position over time to extract the velocity. It avoids the multi-dimensional parameters grid search and reduces the the computational complexity greatly. Simulation results demonstrate that the proposed algorithm outperforms other methods in a wide range of scenarios, especially at low SNR.
14 Feb 2024Assigned to Editor
14 Feb 2024Submission Checks Completed
14 Feb 2024Review(s) Completed, Editorial Evaluation Pending
22 Feb 2024Reviewer(s) Assigned