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In this paper, we examine the exploitation of individual patterns of behavior to enhance indoor positioning of pedestrians.We make use of the fact that, due to habits and needs, a person is likely to be in some locations more often than others. For example, at their work or in their home, a person is likely to spend more time in some rooms than in others. Therefore, it seems natural to take advantage...
This paper presents a weighted least squares algorithm for passive localization using Time Difference of Arrival in multipath scenarios. The algorithm is based on the direct or one-step approach for position estimation using distributed sensors and requires no knowledge about the number of received multipaths, the transmitted signal or the transmit time. Delayed signal paths arriving due to multipath...
Geolocation methods are recently gaining a lot of interest due to their new range of applicability. Location based mobile services as well as frequency regulators aiming at efficient spectrum usage are interested in flexible, low cost geolocation systems with high accuracy. One method that meets those requirements is Time Difference of Arrival (TDoA). It has been subject to research for many years...
Geolocation is an important topic nowadays. Among other applications, geolocation can be used by frequency regulators to monitor the time, frequency and space domain. In this case of a passive geolocation system, Time Difference of Arrival (TDOA) is often used. In this paper we analyze a geolocation system based on a combination of TDOA and Received Signal Strength Differences (RSSD). The benefit...
Locating a mobile transmitter passively is a challenging task. Recently, the most preferred method for this matter is the Time Difference of Arrival (TDOA) method. In this paper, different techniques for enhancing the TDOA results are introduced. They generally give an idea about the challenges of TDOA. We analyze different ways of using consecutive measurements as well as redundant sensors. We do...
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