Title :
Sorting continuous-time signals and the analog median filter
Author :
Ferreira, Paulo J S G
Author_Institution :
Dept. de Electron. e Telecoms, Aveiro Univ., Portugal
Abstract :
Continuous time signals can be meaningfully "sorted," or rearranged, leading to precise formulations of analog median filters and other variants of ranked order filters. The proposed interpretation leads to a broader view of the analog median and related filters and provides a framework for discussing the correct definitions in spaces such as L/sub 1/ or L/sub 2/ and certain issues regarding continuity and root signals.
Keywords :
analog processing circuits; continuous time filters; median filters; sorting; L/sub 1/; L/sub 2/; analog median filter; continuity; continuous-time signals; ranked order filters; root signals; sorting; spaces; Analog circuits; Continuous time systems; Distribution functions; Filtering; Nonlinear dynamical systems; Nonlinear filters; Nonlinear systems; Sorting; Telecommunications;
Journal_Title :
Signal Processing Letters, IEEE
