Publication detail

Checking of Automatically Scaled Ionograms by Infinite Impulse Response Filters

Year: 2016

Type of publication: článek ve sborníku

Name of source: Radioelektronika 2016 : conference proceedings

Publisher name: IEEE (Institute of Electrical and Electronics Engineers)

Place: New York

Page from-to: 273-276

Titles:

Language	Name	Abstract	Keywords
cze	Kontrola automaticky vyhodnocených ionogramů pomocí IIR filtrů	V tomto článku je popsána kontrola automaticky vyhodnocených ionogramů pomocí IIR filtrů. Metoda je založena na detekci extrémních odchylek parametrů celková elektronová koncentrace, kritická frekvence výšky F2 a virtuální výšky vrstvy F2. Použity jsou dolnofrekvenční propusti. Popsaná metoda je otestována na datech z observatoře Průhonice.	Ionogram, IIR filtry, spektrum, ionosféra
eng	Checking of Automatically Scaled Ionograms by Infinite Impulse Response Filters	This paper is about using of the infinite impulse response (IIR) filters for the checking of the automatically scaled ionograms. This method is based on the detection of the extreme deviation in the data sequence of the ionospheric parameters (Total Electron Concentration, critical frequency of F2 layer and virtual height of F2 layer). Used types of the IIR filters are low-pass filters (Butterworth, Chebyshev1, Chebyshev2, and Elliptic). Described method using the data from the observatory Pruhonice measured in January 2016 was tested. These data were measured during the geomagnetic storm. Results were very surprising for the virtual height of the layer F2.	Ionosphere; Ionogram; Scaling of ionograms; Infinite Impulse Response (IIR) Filter; Spectrum

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