Convergence properties of a continuously adaptive digital lattice filter used as a linear predictor are investigated for both an unnormalized and a normalized gradient adaptation algorithm. The PARCOR coefficient mean values and the output mean-square error (MSE) are approximated and a simple model is described which approximates these quantifies as functions of time. Calculated curves using this model are compared with simulation results. Results obtained for a two-stage lattice are then compared with the two-stage least mean-square (LMS) transversal filter algorithm, demonstrating that it is possible but unlikely for the transversal filter to converge faster than the analogous lattice filter.
|Original language||English (US)|
|Number of pages||12|
|Journal||IEEE Transactions on Acoustics, Speech, and Signal Processing|
|State||Published - Jan 1 1981|
ASJC Scopus subject areas
- Signal Processing