Auflistung nach Autor:in "Kaune, Regina"
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- KonferenzbeitragDetermining times of arrival of transponder signals in a sensor network using GPS time synchronization(INFORMATIK 2011 – Informatik schafft Communities, 2011) Steffes, Christian; Kaune, Regina; Sven RauIn this paper, obtaining time of arrival (TOA) measurements in a sensor network is investigated. Differentiating these TOA measurements provides the Time Difference of Arrival (TDOA) measurements between sensor pairs. An approach is proposed to estimate the TOA at a single sensor in a semi-passive scenario. The theoretical investigation is supported by field trials. This experimental analysis pursues two main goals. First, experimental results demonstrate the feasibility of determining the TOA of transponder messages. Second, the quality of TDOA measurements strongly depends on the synchronization accuracy. Here, sensors are synchronized using GPS where an accuracy in the nanosecond range is achieved.
- KonferenzbeitragGaussian Mixture (GM) passive localization using Time Difference of Arrival (TDOA)(Informatik 2009 – Im Focus das Leben, 2009) Kaune, Regina
- KonferenzbeitragPerformance analysis of passive emitter tracking using TDOA, AOA and FDOA measurements(INFORMATIK 2010. Service Science – Neue Perspektiven für die Informatik. Band 2, 2010) Kaune, ReginaThis paper investigates passive emitter tracking using a combination of Time Difference of Arrival (TDOA) measurements with further different types of measurements. The measurements are gained by exploiting the signal impinging from an unknown moving emitter. First, a combined set of TDOA and Angle of Arrival (AOA) measurements is processed using the Maximum Likelihood Estimator (MLE). Then, a Gaussian Mixture (GM) filter is used to solve the tracking problem based on TDOA and Frequency Difference of Arrival (FDOA) measurements. In Monte Carlo simulations, the superior performance of the combined methods in contrast to the single TDOA approach is shown and compared with the Cramér-Rao Lower Bound (CRLB).