On optimum non-linear extraction and coding filters
A. V. Balakrishnan, Rudolf F. Drenick · IEEE Transactions on Information Theory · 1956
The problem of determining optimal non-linear least-square filters is solved for a class of stationary time series. This theory is then used as the basis for developing a band-width reduction scheme using non-linear encoding and decoding filters, for the same class of signals. A simple illustrative example is included.