Optimal design of noisy transmultiplexer systems

Authors:
Huan Zhou;Lihua Xie
Affiliations:
Signal Processing Group, Institute of Physics, University of Oldenburg, Oldenburg, Germany;School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore
Venue:
EURASIP Journal on Applied Signal Processing
Year:
2006

Citing 9
Cited 1

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Abstract

An optimal design method for noisy transmultiplexer systems is presented. For a transmultiplexer system with given transmitters and desired crosstalk attenuation, we address the problem of minimizing the reconstruction error while ensuring that the crosstalk of each band is below a prescribed level. By employing the mixed H2/H∞ optimization, we will ensure that the system with suboptimal reconstruction error is more robust and less sensitive to the changes of input signals and channel noises. Due to the overlapping of adjacent subchannels, crosstalk between adjacent channels is expected. And the problem of crosstalk attenuation is formulated as an H∞ optimization problem, solved in terms of linear matrix inequalities (LMIs). The simulation examples demonstrate that the proposed design performs better than existing design methods.