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In order to correct non-linearities due to high power amplifiers (HPA) operating near saturation in telecommunication transceivers, a new adaptative predistortion system based on neural networks (NNs) was developed. For size, consumption and bandwidth purposes, the multi-layer perceptron (MLP) type NNs were implemented in a 0.6mum CMOS ASIC. The NNs parameters are updated with a computer as a function...
New satellites generations have regenerative payload. Received signals are demodulated in order to be processed, before being modulated again and amplified on-board. For correcting non-linearities due to high power amplifier (HPA) operating near saturation, a predistortion system based on neural networks (NNs) was developed. For size, consumption and bandwidth purposes, the multi-layer perceptron...
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