Robust Sparse Bayesian Learning-Based Off-Grid DOA Estimation Method for Vehicle Localization.

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ID: 83189
2020
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Abstract
With the rapid development of the Internet of Things (IoT), autonomous vehicles have been receiving more and more attention because they own many advantages compared with traditional vehicles. A robust and accurate vehicle localization system is critical to the safety and the efficiency of autonomous vehicles. The global positioning system (GPS) has been widely applied to the vehicle localization systems. However, the accuracy and the reliability of GPS have suffered in some scenarios. In this paper, we present a robust and accurate vehicle localization system consisting of a bistatic passive radar, in which the performance of localization is solely dependent on the accuracy of the proposed off-grid direction of arrival (DOA) estimation algorithm. Under the framework of sparse Bayesian learning (SBL), the source powers and the noise variance are estimated by a fast evidence maximization method, and the off-grid gap is effectively handled by an advanced grid refining strategy. Simulation results show that the proposed method exhibits better performance than the existing sparse signal representation-based algorithms, and performs well in the vehicle localization system.
Reference Key
ling2020robustsensors Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Ling, Yun;Gao, Huotao;Zhou, Sang;Yang, Lijuan;Ren, Fangyu;
Journal sensors
Year 2020
DOI
E302
URL
Keywords
doa estimation vehicle localization off-grid gap passive bistatic radar sparse bayesian learning mechanical properties chemical admixtures overhead electric power lines poles production technology spinning equipment spun reinforced concrete

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