Abstract
The stability of the LMF (Least Mean Fourth) adaptive algorithm is
improved by using the median of the gradient instead of the raw
gradient for updating the coefficients of the adaptive filter.
This operation has two advantages: first it improves the
performance of the LMF in impulse noise environments and secondly
it enables the use of larger step-size of the adaptive algorithm
especially when the signals are corrupted by noise. The
disadvantages are a small raise in the computational complexity
and slower convergence than the LMF. Two examples are given which
illustrates the behavior of the Median LMF compared to the LMF
algorithm.
| Original language | English |
|---|---|
| Title of host publication | NORSIG'98 |
| Place of Publication | Vigsø |
| Publisher | Aalborg University |
| Publication date | 1998 |
| Pages | 157-160 |
| Publication status | Published - 1998 |
| Event | 3rd IEEE Nordic Signal Processing Symposium - Vigsø, Denmark Duration: 8 Jun 1998 → 11 Jun 1998 |
Conference
| Conference | 3rd IEEE Nordic Signal Processing Symposium |
|---|---|
| Country/Territory | Denmark |
| City | Vigsø |
| Period | 08/06/1998 → 11/06/1998 |