Open AccessPerformance of analogue, digital and hybrid finite impulse response filter banks affected by realisation errors and noise
Author(s) -
Pinheiro Marcos A. A,
Petraglia Antonio,
Petraglia Mariane R.
Publication year - 2018
Publication title -
iet signal processing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.384
H-Index - 42
eISSN - 1751-9683
pISSN - 1751-9675
DOI - 10.1049/iet-spr.2018.0105
Subject(s) - finite impulse response , filter bank , computer science , digital filter , estimator , filter (signal processing) , root raised cosine filter , algorithm , filter design , impulse response , electronic engineering , impulse (physics) , control theory (sociology) , mathematics , statistics , engineering , physics , artificial intelligence , mathematical analysis , control (management) , quantum mechanics , computer vision
In this study, the performance of analogue, digital and hybrid finite impulse response filter banks affected by coefficient errors, mismatches among sub‐processors, and noise is investigated. A simple yet important class, the so‐called time‐interleaved filter bank, is also considered. Analytic models are derived to properly describe the impact of these imperfections on the filter bank performance. An estimator for the signal‐to‐noise ratio of these filter banks is advanced, from which comparisons are made among a large variety of structures. Computer simulations are carried out to verify the theory.