{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,7,14]],"date-time":"2024-07-14T16:14:40Z","timestamp":1720973680073},"reference-count":66,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2020,12,24]],"date-time":"2020-12-24T00:00:00Z","timestamp":1608768000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004569","name":"Ministerstwo Nauki i Szkolnictwa Wy\u017cszego","doi-asserted-by":"publisher","award":["DIR\/WK\/2016\/2017\/05-1","59\/E-383\/SPUB\/SP\/2019.1"],"id":[{"id":"10.13039\/501100004569","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004281","name":"Narodowe Centrum Nauki","doi-asserted-by":"publisher","award":["2017\/27\/B\/ST10\/02190"],"id":[{"id":"10.13039\/501100004281","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100005632","name":"Narodowe Centrum Bada\u0144 i Rozwoju","doi-asserted-by":"publisher","award":["DWM\/PL-CHN\/97\/2019","WPC1\/ARTEMIS\/2019"],"id":[{"id":"10.13039\/501100005632","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"Pulsars\u2019 signals reaching the atmosphere can be considered being stable under certain assumptions. In such a case the ionosphere remains the main factor distorting signal from the extraterrestrial sources, particularly if we observe them at long radio waves. In this article we present the results of the analysis of relative peak flux changes for two selected pulsars: PSR J0332+5434 (B0329+54) and PSR J1509+5531 (B1508+55), observed with the long radio wave sensor (The PL612 Low Frequency Array (LOFAR) station in Ba\u0142dy), together with the analysis of Rate of TEC (ROT) parameter changes measured with the Global Navigation Satellite Systems (GNSS) sensor (IGS LAMA station (IGS: International GSSN Service)). The main objective of the work is to find if the rapid plasma density (observed with the Rate of Total Electron Content (TEC)) has a counterpart in the pulsar observation characteristics. This focuses the attention on ionosphere influence during pulsar investigations at low radio frequencies. Additionally, what was the aim of this work, our results give reasons for using pulsar signals from LOFAR together with GNSS data as multi instrumental ionosphere state probes. Our results show a clear anti-correlation between the ROT and the pulsar profile\u2019s peak flux trends.<\/jats:p>","DOI":"10.3390\/s21010051","type":"journal-article","created":{"date-parts":[[2020,12,24]],"date-time":"2020-12-24T14:02:44Z","timestamp":1608818564000},"page":"51","source":"Crossref","is-referenced-by-count":4,"title":["Finding the Ionospheric Fluctuations Reflection in the Pulsar Signals\u2019 Characteristics Observed with LOFAR"],"prefix":"10.3390","volume":"21","author":[{"ORCID":"http:\/\/orcid.org\/0000-0003-0928-9616","authenticated-orcid":false,"given":"Leszek P.","family":"B\u0142aszkiewicz","sequence":"first","affiliation":[{"name":"Space Radio-Diagnostics Research Centre, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland"}]},{"ORCID":"http:\/\/orcid.org\/0000-0003-2922-5839","authenticated-orcid":false,"given":"Pawe\u0142","family":"Flisek","sequence":"additional","affiliation":[{"name":"Space Radio-Diagnostics Research Centre, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland"}]},{"ORCID":"http:\/\/orcid.org\/0000-0002-6894-0600","authenticated-orcid":false,"given":"Kacper","family":"Kotulak","sequence":"additional","affiliation":[{"name":"Space Radio-Diagnostics Research Centre, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland"}]},{"ORCID":"http:\/\/orcid.org\/0000-0003-2812-6222","authenticated-orcid":false,"given":"Andrzej","family":"Krankowski","sequence":"additional","affiliation":[{"name":"Space Radio-Diagnostics Research Centre, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland"}]},{"ORCID":"http:\/\/orcid.org\/0000-0003-0513-9442","authenticated-orcid":false,"given":"Wojciech","family":"Lewandowski","sequence":"additional","affiliation":[{"name":"Janusz Gil Institute of Astronomy, University of Zielona Gora, 65-417 Zielona Gora, Poland"}]},{"given":"Jaros\u0142aw","family":"Kijak","sequence":"additional","affiliation":[{"name":"Janusz Gil Institute of Astronomy, University of Zielona Gora, 65-417 Zielona Gora, Poland"}]},{"ORCID":"http:\/\/orcid.org\/0000-0002-7982-0153","authenticated-orcid":false,"given":"Adam","family":"Fro\u0144","sequence":"additional","affiliation":[{"name":"Space Radio-Diagnostics Research Centre, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland"}]}],"member":"1968","published-online":{"date-parts":[[2020,12,24]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"66","DOI":"10.1038\/132066a0","article-title":"Radio Waves from Outside the Solar System","volume":"132","author":"Jansky","year":"1933","journal-title":"Nature"},{"key":"ref_2","unstructured":"Wilson, T.L., Rohlfs, K., and Huttemeister, S. 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