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- W2073221271 abstract "Solutions for indoor tracking and localization have become more critical with recent advancement in context and location-aware technologies. The accuracy of explicit positioning sensors such as global positioning system (GPS) is often limited for indoor environments. In this paper, we evaluate the feasibility of building an indoor location tracking system that is cost effective for large scale deployments, can operate over existing Wi-Fi networks, and can provide flexibility to accommodate new sensor observations as they become available. This paper proposes a sigma-point Kalman smoother (SPKS)-based location and tracking algorithm as a superior alternative for indoor positioning. The proposed SPKS fuses a dynamic model of human walking with a number of low-cost sensor observations to track 2-D position and velocity. Available sensors include Wi-Fi received signal strength indication (RSSI), binary infra-red (IR) motion sensors, and binary foot-switches. Wi-Fi signal strength is measured using a receiver tag developed by Ekahau, Inc. The performance of the proposed algorithm is compared with a commercially available positioning engine, also developed by Ekahau, Inc. The superior accuracy of our approach over a number of trials is demonstrated." @default.
- W2073221271 created "2016-06-24" @default.
- W2073221271 creator A5010957453 @default.
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- W2073221271 date "2009-10-01" @default.
- W2073221271 modified "2023-09-29" @default.
- W2073221271 title "RSSI-Based Indoor Localization and Tracking Using Sigma-Point Kalman Smoothers" @default.
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- W2073221271 doi "https://doi.org/10.1109/jstsp.2009.2032309" @default.
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