Modeling transmitter and/or transmit observation receiver frequency response and utilization thereof

摘要

Systems and methods for training, or calibrating, a model of a frequency response of a transmitter and/or a model of a frequency response of a transmit observation receiver coupled to an output of the transmitter are disclosed. In one embodiment, in order to train a model of the frequency response of the transmitter and/or a model of the frequency response of the transmit observation receiver, a nonlinear component is connected between an output of the transmitter and an input of the transmit observation receiver. A combined model for the frequency response of the transmitter, a nonlinear characteristic of the nonlinear component, and the frequency response of the transmit observation receiver is then trained. Preferably, once the combined model is trained, the nonlinear component is disconnected for normal operation of the transmitter and the transmit observation receiver.

主权项

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.