Adaptive artificial neural network algorithms for MCD applications

The MCD (multi-carrier demodulator) has gained interest recently for use in both the aviation and satellite onboard processing contexts, where multiplex format conversions are required. Some experiments indicate that the Rician fading channel is well suited to describe the mobile-satellite channel behaviour. A model for implementing a Rician fading channel is presented. The need for an equaliser in the receiver is addressed and the algorithms: decision feedback equaliser (DFE), perceptron-based decision feedback equaliser (PBDFE), and sigma-pi perceptron feedback equaliser (SPPFE), are described. Results to compare the performance of the three algorithms are also included. >