Sökning: "Adaptive processors"
Visar resultat 6 - 10 av 24 avhandlingar innehållade orden Adaptive processors.
6. Adaptive blind deconvolution using third-order moments : exploiting asymmetry
Sammanfattning : This thesis focuses on the use of third-order statistics in adaptive blind deconvolution of asymmetric impulsive signals. Traditional methods are typically based on fourthorder moments, which can discriminate signals with heavy-tailed probability functions (i.e. `spiky' signals) from corresponding filtered versions. LÄS MER
7. Towards an adaptive solver for high-dimensional PDE problems on clusters of multicore processors
Sammanfattning : Accurate numerical simulation of time-dependent phenomena in many spatial dimensions is a challenging computational task apparent in a vast range of application areas, for instance quantum dynamics, financial mathematics, systems biology and plasma physics. Particularly problematic is that the number of unknowns in the governing equations (the number of grid points) grows exponentially with the number of spatial dimensions introduced, often referred to as the curse of dimensionality. LÄS MER
8. Adaptive Hierarchical Scheduling Framework for Real-Time Systems
Sammanfattning : Modern computer systems are often designed to play a multipurpose role. Therefore, they are capable of running a number of software tasks (software programs) simultaneously in parallel. These software tasks should share the processor such that all of them run and finish their computations as expected. LÄS MER
9. Adaptive Baseband Pro cessing and Configurable Hardware for Wireless Communication
Sammanfattning : The world of information is literally at one’s fingertips, allowing access to previously unimaginable amounts of data, thanks to advances in wireless communication. The growing demand for high speed data has necessitated theuse of wider bandwidths, and wireless technologies such as Multiple-InputMultiple-Output (MIMO) have been adopted to increase spectral efficiency. LÄS MER
10. Low-Complexity Algorithms for Echo Cancellation in Audio Conferencing Systems
Sammanfattning : Ever since the birth of the telephony system, the problem with echoes, arising from impedance mismatch in 2/4-wire hybrids, or acoustic echoes where a loudspeaker signal is picked up by a closely located microphone, has been ever present. The removal of these echoes is crucial in order to achieve an acceptable audio quality for conversation. LÄS MER