Kaitha Praveena, Perumalla Naveen Kumar, D. Krishna Reddy
{"title":"Ionospheric irregularities measurement using Indian SBAS-GAGAN","authors":"Kaitha Praveena, Perumalla Naveen Kumar, D. Krishna Reddy","doi":"10.1007/s42401-023-00222-9","DOIUrl":null,"url":null,"abstract":"<div><p>In order to improve the performance of a navigation systems, scintillation studies and Ionospheric Total electron content (TEC) are important. The amplitude scintillation index (S<sub>4</sub>), S<sub>4</sub> corrections and Rate of change of TEC index (ROTI) parameters are analysed for different seasons. For the analysis Visakhapatnam station (Lat: 17.78, Long: 83.22) and Lucknow (Lat: 26.76, Long: 80.88) station, GAGAN receiver data for the year 2016 is considered based on four quiet days and four disturbed days and consider the highest Kp index values for Visakhapatnam station and Lucknow station. This work shows the variation of S<sub>4</sub> index and ROTI parameter variation during different seasons for both the stations. The correlation coefficient (CC) of S<sub>4</sub> index and ROTI are presented. The results show that the CC are high for disturbed days compared to the quiet days for both the considered stations. For Lucknow station, it is observed that CC values are high compared to the Visakhapatnam station.</p></div>","PeriodicalId":36309,"journal":{"name":"Aerospace Systems","volume":"6 4","pages":"595 - 604"},"PeriodicalIF":0.0000,"publicationDate":"2023-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Aerospace Systems","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1007/s42401-023-00222-9","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Earth and Planetary Sciences","Score":null,"Total":0}
引用次数: 1
Abstract
In order to improve the performance of a navigation systems, scintillation studies and Ionospheric Total electron content (TEC) are important. The amplitude scintillation index (S4), S4 corrections and Rate of change of TEC index (ROTI) parameters are analysed for different seasons. For the analysis Visakhapatnam station (Lat: 17.78, Long: 83.22) and Lucknow (Lat: 26.76, Long: 80.88) station, GAGAN receiver data for the year 2016 is considered based on four quiet days and four disturbed days and consider the highest Kp index values for Visakhapatnam station and Lucknow station. This work shows the variation of S4 index and ROTI parameter variation during different seasons for both the stations. The correlation coefficient (CC) of S4 index and ROTI are presented. The results show that the CC are high for disturbed days compared to the quiet days for both the considered stations. For Lucknow station, it is observed that CC values are high compared to the Visakhapatnam station.
期刊介绍:
Aerospace Systems provides an international, peer-reviewed forum which focuses on system-level research and development regarding aeronautics and astronautics. The journal emphasizes the unique role and increasing importance of informatics on aerospace. It fills a gap in current publishing coverage from outer space vehicles to atmospheric vehicles by highlighting interdisciplinary science, technology and engineering.
Potential topics include, but are not limited to:
Trans-space vehicle systems design and integration
Air vehicle systems
Space vehicle systems
Near-space vehicle systems
Aerospace robotics and unmanned system
Communication, navigation and surveillance
Aerodynamics and aircraft design
Dynamics and control
Aerospace propulsion
Avionics system
Opto-electronic system
Air traffic management
Earth observation
Deep space exploration
Bionic micro-aircraft/spacecraft
Intelligent sensing and Information fusion