Improving Calculation Accuracy of Digital Filters Based on Finite Field Algebra

Autor: Elena Doynikova, Alexander V. Veligosha, Pavel A. Lyakhov, Denis N. Butusov, Sergey Aryashev, Dmitry Kaplun
Rok vydání: 2019
Předmět:
Zdroj: Applied Sciences
Volume 10
Issue 1
ISSN: 2076-3417
DOI: 10.3390/app10010045
Popis: The applications of digital filters based on finite field algebra codes require their conjugation with positional computing structures. Here arises the task of algorithms and structures developed for converting the positional notation codes to finite field algebra codes. The paper proposes a method for codes conversion that possesses several advantages over existing methods. The possibilities and benefits of optimization of the computational channel structure for digital filter functioning based on the codes of finite field algebra are shown. The modified structure of computational channel is introduced. It differs from the traditional structure by the fact that there is no explicit code converter in it. The main principle is that the &ldquo
reference&rdquo
values of input samples, which are free from the error of the analog-digital converter, are used as input samples. The proposed approach allows achieving a higher quality of signal processing in advanced digital filters.
Databáze: OpenAIRE