Abstract
Location information is a crucial requirement in underwater acoustic sensor networks. Since ToA-based localization is a commonly used method among plenty ranging-based localization techniques, the problem of improving the performance of ToA ranging ought to be carefully considered. In this paper, we propose an improved ToA ranging scheme for localization in UASNs. Based on a two-step process, this scheme can acquire accurate detection of the earliest arrival time and estimate of clock offset. Experimental results with real sea-trial data confirm that our proposed scheme has excellent performance in improving accuracy of ToA ranging from two aspects, and this method is then employed for underwater localization.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China (61701422, 61801412) and the Natural Science Foundation of Fujian Province of China (2017J01785).
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Yi, J., Lin, Z., Yuan, F., Wang, X., Yuan, J. (2020). An Improved ToA Ranging Scheme for Localization in Underwater Acoustic Sensor Networks. In: Liang, Q., Wang, W., Liu, X., Na, Z., Jia, M., Zhang, B. (eds) Communications, Signal Processing, and Systems. CSPS 2019. Lecture Notes in Electrical Engineering, vol 571. Springer, Singapore. https://doi.org/10.1007/978-981-13-9409-6_276
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DOI: https://doi.org/10.1007/978-981-13-9409-6_276
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