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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/15991

Title: A DOA-based Factor Graph Technique for 3D Multi-target Geolocation
Authors: Cheng, Meng
Aziz, Muhammad Reza Kahar
Matsumoto, Tad
Keywords: 3D geolocation
direction of arrival (DOA)
factor graph (FG)
anonymous multi-target geolocation
sensor separation algorithm
target-DOAs matching
Issue Date: 2019-07-15
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Magazine name: IEEE Access
Volume: 7
Start page: 94630
End page: 94641
DOI: 10.1109/ACCESS.2019.2928851
Abstract: The primary goal of this work is to propose a new factor graph (FG) technique for direction-of-arrival (DOA)-based three-dimensional (3D) multi-target geolocation. The proposed FG detector uses only the mean and the variance of the DOA measurement, including both the azimuth and the elevation, assuming that they are suffering from errors following a Gaussian probability density function (PDF). Therefore, both the up-link (UL) transmission load and the detection complexity can be significantly reduced. The Cramer-Rao lower bound (CRLB) of the proposed DOA-based 3D geolocation system is mathematically derived. According to the root mean square error (RMSE) results obtained by simulations, the proposed FG algorithm is found to outperform the conventional linear least square (LS) approach, which achieves a very close performance to the derived CRLB. Moreover, we propose a sensor separation algorithm to solve the target-DOAs matching problem, such that the DOAs, measured by each sensor, can be matched to their corresponding targets. With this technique, additional target identification is not needed, and the multi-target geolocation can be decomposed into multiple independent single-target detections.
Rights: Meng Cheng, Muhammad Reza Kahar Aziz, Tad Matsumoto, IEEE Access, 7, 2019, pp.94630-94641. DOI:10.1109/ACCESS.2019.2928851. This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/.
URI: http://hdl.handle.net/10119/15991
Material Type: publisher
Appears in Collections:b10-1. 雑誌掲載論文 (Journal Articles)

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