Realization of transmission lattice filters

A double-channel autoregressive moving average (ARMA) lattice filter is proposed. This filter is realized as a cascade of fundamental filter sections. The filter can be realized with the minimal number of delay elements and with no delay free loops, with the realization based on the given scattering function. Algorithms are provided to identify the parameters in the filter. These algorithms are based on the decomposition of the overall transfer scattering matrix into the representation of each fundamental filter section. An application of the authors´ transmission lattice filter is for digital filters representing signals related to signal processing within the ear. The resulting filter gives a linear presentation of the ear structure by a given ear scattering function