Work

On the backwards difference filter

Year: 2007

Type: article

Abstract: Context.It is usual in helioseismology to remove unwanted instrumental low-frequency trends by applying high-pass filters to the time series. However, the choice of the filter is very important because it can keep the periodic signals throughout the spectrum. At the same time, these filters should not introduce any spurious effects on the remaining signal, which would modify the periodic signatures in the Fourier domain.

Source: Astronomy and Astrophysics

DOI: 10.1051/0004-6361:20077425

Authors: R. A. García, J. Ballot

Institutions: Centre National de la Recherche Scientifique, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Astrophysique, Instrumentation et Modélisation, Max Planck Institute for Astrophysics

Language: English

Topic: Solar and Space Plasma Dynamics

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funder: European Commission

OpenAlex ID: W2019790428