Patent ID: 9036732
Filing Date: 2015-05-19
Classification: H03F,H04B

Abstract:
1. A method comprising: connecting a nonlinear component between an output of a transmitter and an input of a transmit observation receiver that is coupled to the output of the transmitter; and training a combined model of a frequency response of the transmitter, a nonlinear characteristic of the nonlinear component, and a frequency response of the transmit observation receiver using a signal generated from an input signal to the transmitter and an output signal of the transmit observation receiver, the combined model comprising concatenation of a model of a first linear filter that corresponds to a model of the frequency response of the transmitter, a model of a quasi-memoryless nonlinearity that represents a model of the nonlinear characteristic of the nonlinear component, and a model of a second linear filter that represents a model of the frequency response of the transmit observation receiver, wherein training the combined model improves performance of the transmitter.