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The Volterra-PARAFAC (VP) nonlinear system model, which consists of a FIR filterbank followed by a memoryless nonlinearity, aims at offering a good compromise between accuracy and parametric complexity. Here, for an even better compromise, we propose a generalization with IIR filters (VPI model) and evaluate both models. For the evaluation, we consider the concrete case of two audio loudspeakers and...
This paper presents an analysis of the performance of a baseband multiple-input single-output (MISO) time reversal ultra-wideband system (TR-UWB) incorporating a symbol spaced decision feedback equalizer (DFE). A semi-analytical performance analysis based on a Gaussian approach is considered, which matched well with simulation results, even for the DFE case. The channel model adopted is based on the...
A previously presented framework for the convergence speed analysis of adaptive IIR filters considered white input signals and an identification configuration. In this framework, a local model was built and the Hankel singular values of the system being identified had a fundamental role. It also led to the successive approximations (SA) algorithm, attaining a large speed gain. Here, an approach to...
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