Method and system of linearization for non-linear system

A device for linearization for a non-linear system, comprising, or comprising all of, but enabling, the following components:

• an inputting component configured to obtain an input signal to the non-linear system;
• a first obtaining component configured to obtain an output signal from the non-linear system in response to the input signal being input to the non-linear system;
• a second obtaining component configured to obtain a desired signal for the non-linear system;
• a comparing component configured to compare the output signal with the desired signal to determine whether the input signal is a target signal for the non-linear system to achieve a desired performance;
• and
• a generating component configured to generate an updated input signal in a frequency domain by adding the input signal in the frequency domain and a difference between the output signal and the desired signal in the frequency domain, multiplied by a coefficient and providing the updated input signal to the non-linear system in response to determining that the input signal is not the target signal for the non-linear system to achieve the desired performance, wherein the non-linear system is a wideband non-linear system, and the coefficient is an inverse of a Jacobian of the non-linear system in the frequency domain.

A device for linearization for a non-linear system, comprising:

• a storage, adapted to store instructions therein;
• a processor, adapted to execute the instructions to cause the device to repeatedly perform a group of actions comprising:
• input an input signal to the non-linear system;
• obtain an output signal from the non-linear system in response to the input signal being input to the non-linear system;
• obtain a desired signal for the non-linear system;
• compare the output signal with the desired signal to determine whether the input signal is a target signal for the non-linear system to achieve a desired performance;
• and
• in response to determining that the input signal is not the target signal for the non-linear system to achieve the desired performance, generate an updated input signal in a frequency domain by adding the input signal in the frequency domain and a difference between the output signal and the desired signal in the frequency domain, multiplied by a coefficient and providing the updated input signal to the non-linear system, wherein the non-linear system is a wideband non-linear system, and the coefficient is an inverse of a Jacobian of the non-linear system in the frequency domain.

A non-transitory computer-readable medium storing computer-executable instructions thereon that, when executed by a computing device, cause the computing device to repeatedly perform a group of actions comprising:

• input an input signal to a non-linear system;
• obtain an output signal from the non-linear system in response to the input signal being input to the non-linear system;
• obtain a desired signal for the non-linear system;
• compare the output signal with the desired signal to determine whether the input signal is a target signal for the non-linear system to achieve a desired performance;
• and
• in response to determining that the input signal is not the target signal for the non-linear system to achieve the desired performance, generate an updated input signal in a frequency domain by adding the input signal in the frequency domain and a difference between the output signal and the desired signal in the frequency domain, multiplied by a coefficient and providing the updated input signal to the non-linear system, wherein the non-linear system is a wideband non-linear system, and the coefficient is an inverse of a Jacobian of the non-linear system in the frequency domain.