https://patentimages.storage.googleapis.com/f0/05/88/13b0e74c9ffa2b/US20180278290A1.pdf
RT Moorti, K Viswanatha - US Patent App. 15/937,605, 2018
A system for digital self-interference cancellation includes a filter that generates a reduced-noise digital residue signal; a channel estimator that generates a current self-interference channel estimate from a digital transmit signal, the reduced-noise …