US 12,308,802 B2
Recursive linearization of a non-linear model for an electronic device
Leonard Rexberg, Hässelby (SE); and Ashim Biswas, Sollentuna (SE)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Appl. No. 17/772,690
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Oct. 29, 2019, PCT No. PCT/SE2019/051072
§ 371(c)(1), (2) Date Apr. 28, 2022,
PCT Pub. No. WO2021/086238, PCT Pub. Date May 6, 2021.
Prior Publication US 2023/0006614 A1, Jan. 5, 2023
Int. Cl. H03G 3/30 (2006.01); H03F 1/32 (2006.01); H03F 3/21 (2006.01); H03H 17/02 (2006.01); H03H 17/00 (2006.01)
CPC H03F 1/3258 (2013.01) [H03F 3/21 (2013.01); H03H 17/02 (2013.01); H03F 2200/294 (2013.01); H03F 2200/451 (2013.01); H03H 2017/0081 (2013.01)] 15 Claims
OG exemplary drawing
 
14. A linearizer device for enabling linearization of a non-linear electronic device, the linearizer device comprising processing circuitry, the processing circuitry being configured to cause the linearizer device to:
receive an input signal destined to be input to the non-linear electronic device,
wherein input-output characteristics of the non-linear electronic device is represented by a model, wherein the model is defined by a mathematical expression, and wherein input-output characteristics of the linearizer device is given by the linearization function, the linearization function being determined by applying a function recursion to the mathematical expression of the model,
obtain an output signal by subjecting the input signal to the linearization function; and
provide the output signal, instead of the input signal, as input to the non-linear electronic device, thereby enabling linearization of the non-linear electronic device and wherein the linearization function is defined by the inverse of the model, and wherein the inverse is determined by function recursion being applied to the mathematical expression of the model.