- Tytuł:
- Classes of tonality of signals in the aspect of active elimination of tonal components
- Autorzy:
- Łuczyński, Michał
- Powiązania:
- https://bibliotekanauki.pl/articles/127943.pdf
- Data publikacji:
- 2019
- Wydawca:
- Politechnika Poznańska. Instytut Mechaniki Stosowanej
- Tematy:
-
tonality
signal processing
Active Noise Control
tonalność
przetwarzanie sygnałów
aktywna redukcja hałasu - Opis:
- The aim of this paper is to analyse various types of signals defined as tonal where energy is concentrated in a narrow band of the spectrum. Not all tonal noises could be reduced using narrowband active noise control systems with cancelling signal generated based on source parameters. The author proposes the following classes of tonality: periodical (e.g. sinusoidal) signals, sinusoidal signals modulated by random function, sinusoidal signals with increased/decreasing amplitude and/or frequency, a combination of the two previous ones, and narrowband noises. For each type of the analysed signals active elimination of the tonal component using synthesized cancelling signal was carried out. Depending on the type of the signals different results were obtained which indicates the need to clarify the definition of a tonal signal, or use not one concept of a tonal signal, but several classes discussed above.
- Źródło:
-
Vibrations in Physical Systems; 2019, 30, 1; 1-8
0860-6897 - Pojawia się w:
- Vibrations in Physical Systems
- Dostawca treści:
- Biblioteka Nauki
Artykuł