Martina Daun

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Activated reconnaissance systems based on target illumination are of high importance for surveillance tasks where targets are nonemitting. Multistatic configurations, where multiple illuminators and multiple receivers are located separately, are of particular interest. The fusion of measurements is a prerequisite for extracting and maintaining target(More)
— Multistatic active sonar has become an important surveillance concept. To fully exploit its benefits in a real-time and realistic scenario, a multihypotheses tracking (MHT) algorithm is proposed which as a extension from standard approaches allows high precision state estimation, treatment of multiple different types of sonar signals and allows adaptation(More)
Target tracking from non-invertible measurement sets, for example, incomplete spherical coordinates measured by asynchronous sensors in a sensor network, is a task of data fusion present in a lot of applications. Difficulties in tracking using extended Kalman filters lead to unstable behavior, mainly caused by poor initialization. Instead of using high(More)
Multistatic Sonar Systems (MSS) based on manned or stationary systems provides necessary performance for Anti Submarine Warfare (ASW) surveillance operations. Sufficiently accurate sensor models are implemented in data fusion algorithms in order to exploit the added-value of the multiple aspects on the target. The logical follow-on is to use them to control(More)
—In active sonar, low measurement rates of up to several minutes are commonly used. Thus, strong manoeuvres may occur between two measurements. To assure high-quality tracking, target dynamics have to be modelled precisely. In this paper, a variant of the Nearly Constant Velocity model is presented with deviations modelled according to the assumption that(More)