<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The ionospheric observatory Pruhonice serves to monitor the state of ionosphere using ground-based vertical sounding instrument - the Digisonde DPS-4D. Measured ionograms are automatically evaluated (scaled) and basic characteristics are derived. The ionograms and the scaled parameters are sent to the international databases. Especially during disturbed conditions the automatic scaling could give unreliable results. This paper presents simple method how to detect accidental errors in automatic scaling based on the parameters derived from ionograms and on an application of the finite impulse response filters.</p></abstract>

The ionospheric observatory Pruhonice serves to monitor the state of ionosphere using ground-based vertical sounding instrument - the Digisonde DPS-4D. Measured ionograms are automatically evaluated (scaled) and basic characteristics are derived. The ionograms and the scaled parameters are sent to the international databases. Especially during disturbed conditions the automatic scaling could give unreliable results. This paper presents simple method how to detect accidental errors in automatic scaling based on the parameters derived from ionograms and on an application of the finite impulse response filters.

Application of Digital Filters to Check Quality of the Automatically Scaled Ionograms

Department of Aeronomy Institute of Atmospheric Physics Czech Academy of Sciences of the Czech Republic Prague, Czech Republic

Journal of Electrical Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The ionospheric observatory Pruhonice serves to monitor the state of ionosphere using ground-based vertical sounding instrument - the Digisonde DPS-4D....

Application of Digital Filters to Check Quality of the Automatically Scaled Ionograms

Published Online: Jul 14, 2015

Page range: 164 - 168

Received: Dec 17, 2014

DOI: https://doi.org/10.2478/jee-2015-0026

Keywords
ionogram, F2 layer, critical frequency, virtual height, total electron content, finite impulse response filter

© Faculty of Electrical Engineering and Information Technology, Slovak University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Application of Digital Filters to Check Quality of the Automatically Scaled Ionograms

Published Online: Jul 14, 2015

Page range: 164 - 168

Received: Dec 17, 2014

DOI: https://doi.org/10.2478/jee-2015-0026

Keywordsionogram, F2 layer, critical frequency, virtual height, total electron content, finite impulse response filter

© Faculty of Electrical Engineering and Information Technology, Slovak University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
ionogram, F2 layer, critical frequency, virtual height, total electron content, finite impulse response filter