- Tytuł:
- Continuous and discontinuous linear approximation of the window spectrum by least squares method
- Autorzy:
- Borkowski, J.
- Powiązania:
- https://bibliotekanauki.pl/articles/221777.pdf
- Data publikacji:
- 2011
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
data window
spectrum approximation
interpolated DFT
LIDFT
spectrum estimation
zero padding - Opis:
- This paper presents the general solution of the least-squares approximation of the frequency characteristic of the data window by linear functions combined with zero padding technique. The approximation characteristic can be discontinuous or continuous, what depends on the value of one approximation parameter. The approximation solution has an analytical form and therefore the results have universal character. The paper presents derived formulas, analysis of approximation accuracy, the exemplary characteristics and conclusions, which confirm high accuracy of the approximation. The presented solution is applicable to estimating methods, like the LIDFT method, visualizations, etc.
- Źródło:
-
Metrology and Measurement Systems; 2011, 18, 3; 379-390
0860-8229 - Pojawia się w:
- Metrology and Measurement Systems
- Dostawca treści:
- Biblioteka Nauki
Artykuł