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In this paper we describe a scenario for supporting healthcare at home and identify some demands for intelligibility in this situation. In such a system we have identified a need for flexible adding and removing medical devices, and to support changing functionality depending on if a nurse is present or not. We suggest that this kind of variability can be addressed by introducing guards in our rul
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In time hopping impulse radio, N/sub f/ pulses of duration T/sub c/ are transmitted for each symbol. This gives rise to two types of processing gain: (i) pulse combining gain, which is a factor N/sub f/, and (ii) pulse spreading gain, which is N/sub c/ = T/sub f//T/sub c/, where T/sub f/ is the mean interval between two subsequent pulses. This paper investigates the trade-off between these two typ
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Adaptive controllers are traditionally based on the principle of separation of estimation and control. Many design methods can be interpreted as pole-placement design. One drawback with this approach is that the controllers often are of the same order as the order of the process to be controlled. In this paper an adaptive controller based on a frequency domain method is presented. The idea is to o