Adaptivni digitalni filtri / Adaptive digital filters

• Main Author: Dragan Petković
• Format: Article
• Language: English
• Published: University of Defence in Belgrade 2002-01-01
• Series: Vojnotehnički Glasnik
• Subjects: adaptivni filtar; diskretni signal; CCL petlja; adaptive filter; discrete signal; Correlation Canceler Loop
• Online Access: http://scindeks-clanci.ceon.rs/data/pdf/0042-8469/2002/0042-84690201061P.pdf
• ISSN: 0042-8469; 2217-4753

Rad opisuje osnove funkcionisanja adaptivnih filtara. U uvodnim razmatranjima obra-đene su osnove matematičke obrade diskretnih signala i z-transformacije kod adaptivnih filtara. Izložen je Wienerov problem filtracije. Predstavljeni su CCL petlja i Widrow-Hoffov LMS algoritam i razmotrena brzina konvergencije adaptivnih filtara. Praktično je realizova-na CCL petlja sa osvrtom na brzinu konvergencije. / The paper describes the basis of adaptive filter functioning. The first considerations deal with the mathematical processing of discrete signals and the Z-transform in adaptive filters. The Wieners filter processing problem was exposed. The Correlation Canceler Loop (CCL) was presented as well as the Widrow-Hoffs adaptive Least Mean Squares (LMS) step-by-step procedure. The convergence rate of adaptive filters was considered as well. The CCL simulations were obtained pointing out the convergence rate.