Automatic interpretation of ionograms of oblique sounding with a continuous chirp signal based on hybrid algorithms

S. N. Ponomarchuk; V. P. Grozov

doi:10.1117/12.2688445

17 October 2023 Automatic interpretation of ionograms of oblique sounding with a continuous chirp signal based on hybrid algorithms

S. N. Ponomarchuk, V. P. Grozov

Author Affiliations +

Proceedings Volume 12780, 29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 127806R (2023) https://doi.org/10.1117/12.2688445
Event: XXIX International Symposium "Atmospheric and Ocean Optics, Atmospheric Physics", 2023, Moscow, Russian Federation

Abstract

We consider the algorithms for interpreting data of ionosphere oblique sounding (OS) by using continuous chirp signal. Ionograms are interpreted using the points with significant amplitudes that were detected after the secondary data processing, results of modelling the OS signal distance-frequency characteristic (DFC) being used. We developed hybrid algorithms to extract DFC tracks of signals reflected from F1 and F2-layers. These algorithms are based on the analysis of signal amplitude characteristics and plotting distribution histograms of points falling into the DFC model mask when the latter is moved over the ionogram. Algorithms to extract tracks of signals reflected from sporadic layers are given a separate consideration. Using the results of ionogram interpretation, one can detect the maximum observed frequencies of signal propagation modes on radio path.

Citation Download Citation

S. N. Ponomarchuk and V. P. Grozov "Automatic interpretation of ionograms of oblique sounding with a continuous chirp signal based on hybrid algorithms", Proc. SPIE 12780, 29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 127806R (17 October 2023); https://doi.org/10.1117/12.2688445

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