| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 563500 | Signal Processing | 2012 | 5 Pages |
Smoothing causal linear time-invariant filters are studied for continuous time processes. The paper suggests a family of causal filters with almost exponential damping of the energy on the higher frequencies. These filters are sub-ideal meaning that a faster decay of the frequency response would lead to the loss of causality.
► A family of smoothing causal linear time-invariant filters for continuous time processes is suggested such that the frequency response approximates the real unity uniformly on an arbitrarily large interval. ► In addition, almost exponential damping of the energy on the higher frequencies is ensured. ► These filters are sub-ideal meaning that a faster decay of the frequency response would lead to the loss of causality.
