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Global navigation satellite systems (GNSSs) can deliver very good position estimates under optimum conditions. However, in urban and indoor scenarios positioning with GNSS is often impossible. On the other hand, cellular wireless communication systems, e.g., the new, orthogonal frequency division multiplexing (OFDM) based third generation partnership project's long-term evolution (3GPP-LTE), provide...
Time Based (TB) localization in terrestrial mobile radio as an augmentation for global navigation satellite systems has recently gained plenty of interests. As an essential tool to develop suitable algorithms for positioning applications in mobile radios, channel models for wireless transmissions have growing significance. Currently there is a lack of investigations on comparing the propagation characteristics...
In this paper we propose a new algorithm that solves the Guruswami-Sudan interpolation step for Reed-Solomon codes efficiently. It is a generalization of the Feng-Tzeng approach, the so-called fundamental iterative algorithm. From the interpolation constraints of the Guruswami-Sudan principle it is well known that an improvement of the decoding radius can only be achieved, if the multiplicity parameter...
Ziel der vorliegenden Untersuchung war es, Untersucher- und Gerte-abhngige Fehler bei der Keratometrie von Kindern aufzudecken. Darber hinaus sollte deren Einfluss auf die vorhergesagte postoperative Refraktion nach Einpflanzung einer Intraokularlinse untersucht werden. Material und Methode: Bei 5 Kindern im Alter von 1,5 bis 7,5 Monaten (Mittelwert: 4,4 Monate) wurden die Hornhautradien an beiden...
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