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• W2129334699 abstract "We consider cooperative positioning using acoustic range measurements for underwater sensor networks. Severe multipath scattering from the seabed and ocean surface can result in inaccurate range measurements. The direct path is not necessarily the strongest path or the first arrival. Then, the range measurements based on the first or strongest arrival could be significantly biased. We introduce herein a new centralized cooperative positioning algorithm, referred to as the weighted steepest descent algorithm (WSDA), for underwater sensor networks. We assume that for each acoustic ranging channel, multiple range measurements corresponding to several propagation paths, one of which is the direct path, are available for cooperative positioning. Since it is unknown a priori which path is the direct path, we must identify it first. We show that WSDA can be used to automatically identify the direct path. We also show via numerical examples that WSDA is an effective and efficient approach to cooperative positioning in underwater sensor networks." @default.
• W2129334699 created "2016-06-24" @default.
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• W2129334699 date "2011-01-01" @default.
• W2129334699 modified "2023-09-25" @default.
• W2129334699 title "Centralized Cooperative Positioning for Underwater Sensor Networks: A Weighted Gradient Approach" @default.
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• W2129334699 doi "https://doi.org/10.1109/hicss.2011.96" @default.
• W2129334699 hasPublicationYear "2011" @default.
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