Dr. B. Tichá

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The paper proposes a non-conventional design of OTA-C low-pass filter including multi-criterion optimization of final filter structure parameters. The optimization procedure is based on the Differential Evolutionary Algorithms usage and allows simultaneously to minimize filter element values spread and to optimize dynamic properties of filter structure. The(More)
Es wurde die Häufigketi orthodontischer Anomalien bei Kindern mit angeborenen Herzfehlern untersucht. 55 Patienten mit kongenitalen Herzfehlern wurden nach Schwere der Krankheit in 3 Gruppen eingeteilt: A — mit Zyanose, B — mit Atemnot, C — mit Zyanose und Atemnot. Beit allen Kindern wurden Gewicht, Körpergröße, Zahn-und Knochenalter sowie Häufigkeit und(More)
This contribution compares a few variants of switched-current biquads derived from 2<sup>nd</sup>-order digital filter direct forms. Three basic building blocks are considered: a delay unit, a differentiator and an integrator. All the versions are compared with respect to their sensitivity properties and building blocks losses. The results are illustrated(More)
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