Method for predistorting signals for non-linear components in the presence of long term memory effects

摘要

A method and system for predistorting signals provides a test signal to model a non-linear component. Model kernels representative of static and dynamic parts of the model are extracted from an output of the non-linear component responsive to the test signal. The dynamic part represents memory effects of the non-linear component. The model kernels are then used to calculate an inverse memory model component model. An input signal is predistorted using the inverse memory model.

主权项

1. A non-transitory computer readable medium that stores a program executable by a computer for predistorting signals, the computer readable medium comprising:
a generating code segment for generating a test signal; a system model code segment for generating a system model of a system from an output signal of the system generated in response to the test signal, the system model including a dynamic part that characterizes memory effects of the system; a memory model code segment for generating an inverse memory model from the system model; and a predistorting code segment for predistorting an input signal using the inverse memory model, wherein the inverse memory model is insensitive to changes in modulation bandwidth of the input signal.