| 摘要 |
The present invention relates to a device for predistortion and pulse shaping filtering in a communication system comprising
- input scaling means arranged for scaling an applied transmit symbol with an adaptable input gain scaling factor,
- a pulse shaping filter and a predistortion unit arranged for applying on said input gain scaled transmit symbol in either order a filtering operation and a non-linear predistortion operation, so obtaining a predistorted signal, said non-linear predistortion operation represented by a set of parameter values selectable among a plurality of given sets of parameter values, said predistortion unit being arranged for selecting said set of parameter values exploiting a given performance measure,
- output scaling means arranged for scaling said predistorted signal with an output gain scaling factor, so obtaining a transmit signal,
whereby said adaptable input gain scaling factor and said output gain scaling factor are precalculated values corresponding to at least the selected set of parameter values. |
