Blind volterra system linearization with applications to post compensation of ADC nonlinearities

Blind Volterra system linearization is a challenging problem with a variety of applications where nonlinearities are present and training signals are not. This paper focuses on digital post compensation of nonlinear analog-to-digital converters (ADCs) and proposes a blind linearization approach based on the Volterra series. Assuming that the input signal does not occupy the full Nyquist bandwidth, i.e., there exists an energy-free band, the Volterra series coefficients are estimated by minimizing the linearized signal power in the energy-free band. Simulation results are presented which demonstrate the effectiveness of the proposed method.