Christoph Degen

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In this paper, linear and successive predistortion techniques for single-carrier and orthogonal frequency division multiplexing (OFDM) transmission systems with frequency domain filtering are presented using either zero forcing or Wiener optimization. The successive predistortion scheme applies modulo arithmetic in each iteration, borrowed from(More)
Decision-feedback (DF) equalization schemes, well-known from multiuser detection, offer the opportunity of an additional performance gain compared to their corresponding linear equalizers by feeding back past decisions on already detected symbols, based on a fixed symbol detection order. For MIMO systems, an optimum symbol stream detection order has been(More)
The passive non-cooperative localization and tracking of mobile terminals in urban scenarios, called blind mobile localization (BML), is a highly demanding task which occurs for instance in safety, emergency and security applications with non-subscribed phone user locations. In this paper it is demonstrated how Sequential Monte Carlo (SMC) implementations(More)
The task of tracking targets, that generate more than one measurement per scan appears in several applications such as extended object and group tracking. There, the target (or group) extend implies that muliple measurements, drawn according to a spatial probability distribution, are measured per sensor-scan. However, applications exist where targets(More)
This paper evaluates a previously presented method for indoor pedestrian tracking using inertial sensing and a laser scanner (Light Detection and Ranging LIDAR). The zero velocity updating technique [2], which is used to enhance the performances of an inertial sensing sensor mounted on the foot, cannot observe heading, resulting in a horizontal position(More)
The passive non-cooperative localization and tracking of mobile terminals in urban scenarios, called blind mobile localization (BML), is a highly demanding task which occurs for instance in safety, emergency and security applications with non-subscribed phone user locations. Due to the urban environment and physical propagation effects multiple signals(More)