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Wyszukujesz frazę "FIR filter design" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Digital-Filter-Based Compensation of Case Effect in Sound-Level Meters
Autorzy:
Miękina, A.
Podgórski, A.
Powiązania:
https://bibliotekanauki.pl/articles/226786.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
digital compensation
DSP applications
FIR filter design
Remez algorithm
Opis:
The methodology for the design of a digital filter, which should compensate the effect of reflections and diffraction from the sound-level meter's casing (the so-called case effect), is presented. The coefficients of the family of the finite impulse response (FIR) filters, which were selected to fulfill the requirements of the compensation, were obtained in the MATLAB environment using the Remez algorithm. The frequency response of the selected designed filter are given. The chosen FIR filter was implemented in an on-chip Enhanced Filter Coprocessor of a fixed point 24-bit digital signal processor of a sound-level meter.
Źródło:
International Journal of Electronics and Telecommunications; 2010, 56, 3; 263-266
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Design of Sparse FIR Filters with Low Group Delay
Autorzy:
Konopacki, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/1844604.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
digital filters
FIR filter design
sparse filters
reduced group delay filters
Opis:
The aim of the work is to present the method for designing sparse FIR filters with very low group delay and approximately linear-phase in the passband. Significant reduction of the group delay, e.g. several times in relation to the linear phase filter, may cause the occurrence of undesirable overshoot in the magnitude frequency response. The method proposed in this work consists of two stages. In the first stage, FIR filter with low group delay is designed using minimax constrained optimization that provides overshoot elimination. In the second stage, the same process is applied iteratively to reach sparse solution. Design examples demonstrate the effectiveness of the proposed method.
Źródło:
International Journal of Electronics and Telecommunications; 2021, 67, 1; 121-126
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Square Root Raised Cosine Fractionally Delaying Nyquist Filter : Design and Performance Evaluation
Autorzy:
Hermanowicz, E.
Rojewski, M.
Powiązania:
https://bibliotekanauki.pl/articles/226102.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
SRRC
Square Root Raised Cosine
Nyquist filter
special FIR
Finite Impulse Response
filter design
ISI
Intersymbol Interference
fractional delay filter
Opis:
In this paper we propose a discrete-time FIR (Finite Impulse Response) filter which is meant to be applied as a square root Nyquist filter and fractional delay filter simultaneously. The filter enables to substitute for a cascade of square root raised cosine (SRRC) Nyquist filter and fractional delay filter in one device/algorithm. The aim is to compensate for transmission delay in digital communication system. Performance of the filter in the role of a matched filter is evaluated using a newly defined energetic ISI (Intersymbol Interference) measure and ability of the filter to completely eliminate the ISI involved by fractional delay of symbol shaping filter in transmitter or by channel delay. Considerations and results of the contribution are documented by suitable eye-diagrams and the SRRC filter responses.
Źródło:
International Journal of Electronics and Telecommunications; 2014, 60, 3; 247-252
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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