Filtyp
A new approach to low-complexity channel estimation in orthogonal-frequency division multiplexing (OFDM) systems is proposed. A low-rank approximation is applied to a linear minimum mean-squared error (LMMSE) estimator that uses the frequency correlation of the channel. By using the singular value decomposition (SVD) an optimal low-rank estimator is derived, where performance is essentially preser
A new novel single input current-sensing differential logic (SCSDL) is proposed. The SCSDL is flexible-in particular high input Boolean logic functions can be implemented with low complexity, area consumption, time delay, and power consumption. The first part of the area saving comes from the remarkable reduction of wiring; the other part comes from the very low number of transistors needed to imp
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During the last two decades or so, film support, film policy and the public financing of audiovisual production in Scandinavia and particularly Sweden have undergone extensive transformation. In diverse ways, these changes can be seen as responses to globalization, to increased sub-national regional independence, to the emerging idea of nurturing ‘creative industries’ taking hold, and as a result
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The time-domain theory of forerunners (precursors) in temporally dispersive, nonmagnetic, isotropic materials is developed using the propagator technique. Specifically, the impulse response at a (comparatively) large propagation depth is expanded in two different ways: (a) with respect to the wave-front and (b) with respect to slowly varying field components. A few numerical examples illustrating
