Abstract: According to some embodiments, a method of nonlinear RF beamforming includes receiving a reference RF signal and computing linear beamformed signals. The method further includes determining a frequency content for each of the plurality of linear beamformed signals, determining a reduced subset of linear beamformed signals, and computing a minimum element-wise magnitude across the reduced subset of linear beamformed signals. The method further includes computing a FFT of a reference channel signal, computing an amplitude mask ratio between the minimum element-wise magnitude and the FFT of the reference channel signal, and applying a learned polynomial response to the amplitude mask ratio to create a modified amplitude mask. The method further includes applying the modified amplitude mask to the FFT of the reference channel signal to create a masked frequency response of the reference channel signal and computing an inverse FFT in order to generate a final beamformed signal.