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Article

A GDOP-Based Performance Description of TOA Localization with Uncertain Measurements

School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
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Author to whom correspondence should be addressed.
Remote Sens. 2022, 14(4), 910; https://doi.org/10.3390/rs14040910
Submission received: 27 December 2021 / Revised: 26 January 2022 / Accepted: 31 January 2022 / Published: 14 February 2022

Abstract

In this paper, we study a geometric dilution of a precision (GDOP)-based localization performance metric for multisite radar adopting a time-of-arrival (TOA)-based localization scheme. In contrast to the existing literature, we consider an actual uncertain measurement situation where the detection probabilities of radar nodes are assumed to be less than unity. The aim is to formulate a general signal-decoupled metric to describe the system localization performance while fully considering detection and estimation operations. Specifically, to match the uncertain measurements, we first establish effectively detected time delay measurements (TDMs) for localization and modify the traditional performance bounds for TDM estimation. Then, by combining the localization performance with the effective detection (ED) via probability, we propose a novel geometric dilution of precision with uncertain measurements (GDOP-UM) metric. The proposed metric can truly characterize the localization performance under the uncertain measurement situation. Finally, the simulation results show that the proposed GDOP-UM can describe the actual localization performance regardless of how the detection performance changes.
Keywords: multisite radar; TOA localization; uncertain measurement; geometric dilution of precision multisite radar; TOA localization; uncertain measurement; geometric dilution of precision

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MDPI and ACS Style

Wang, Y.; Zhou, T.; Yi, W.; Kong, L. A GDOP-Based Performance Description of TOA Localization with Uncertain Measurements. Remote Sens. 2022, 14, 910. https://doi.org/10.3390/rs14040910

AMA Style

Wang Y, Zhou T, Yi W, Kong L. A GDOP-Based Performance Description of TOA Localization with Uncertain Measurements. Remote Sensing. 2022; 14(4):910. https://doi.org/10.3390/rs14040910

Chicago/Turabian Style

Wang, Yao, Tao Zhou, Wei Yi, and Lingjiang Kong. 2022. "A GDOP-Based Performance Description of TOA Localization with Uncertain Measurements" Remote Sensing 14, no. 4: 910. https://doi.org/10.3390/rs14040910

APA Style

Wang, Y., Zhou, T., Yi, W., & Kong, L. (2022). A GDOP-Based Performance Description of TOA Localization with Uncertain Measurements. Remote Sensing, 14(4), 910. https://doi.org/10.3390/rs14040910

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