Scale-Selective Digital-Filtering Initialization

Digital Filter Initialization

Digital Filtering

Some particular types of filters that we will look at include low pass, high pass, and band pass filters which cut off portions of the frequency spectrum while allowing other frequencies to pass through the filter. In implementing these filters we will want to achieve the desired frequency response while otherwise distorting the signal as little as possible. We will concentrate our analysis on ...

Digital Adaptive Spectral Filtering

An adaptive procedure for removing a multimodal power spectrum using cascaded transversal digital filters is described. Sach section of the c/erall filtfir consists of a second order transversal filter whose zero pair is adaptively adjusted to remove one of the modes of the undesired spectrum. Ihe paper is divided into two sections. The paper first treats the case of an unknown but unimodal pow...

Scale-Space Filtering

The extrema in a signal and its first few derivatives provide a useful general-purpose qualitative description for many kinds of signals. A fundamental problem in computing such descriptions is scale: a derivative must be taken over some neighborhood, but there is seldom a principled basis for choosing its size. Scale-space filtering is a method that describes signals qualitatively, managing th...

Scale space filtering pdf