Real-time GPS Ionospheric TEC Estimation over South Korea

Challenges of Real-Time Monitoring of Ionospheric Perturbations and TEC Fluctuations with GPS Single Station

GPS ionospheric tomography: A comparison with the IRI-2001 model over South Korea

The International Reference Ionosphere model 2001 (IRI-2001) is one of the most comprehensive empirical models of the ionosphere and has been widely used to estimate the electron density profiles in the altitude ranging from about 60 to 2000 km and the total electron content (TEC) at any given location, time and date, which reflect smooth-average global ionospheric behaviors. However, whether i...

Estimation Method of Ionospheric TEC Distribution using Single Frequency Measurements of GPS Signals

The satellite-to-ground communications are influenced by ionospheric plasma which varies depending on solar and geomagnetic activities as well as regions and local times. With the expansion of use of the space, continuous monitoring of the ionospheric plasma has become an important issue. In Global Positioning System (GPS), the ionospheric delay, which is proportional to ionospheric total elect...

Real-time Ionospheric Tomography Using Terrestrial GPS Sensors

As a member of the GPS Laboratory his research is focused on wide-area diierential GPS system design, analysis, and application. Mr.Hansen was a member of the technical staa at TASC, Inc. where he worked on DGPS, Loran-C, and Omega radionavigation systems before entering Stanford. He received his BSEE and MSEE from Worcester Polytechnic Institute. ABSTRACT We present a novel technique for estim...

GPS observations of the ionospheric F2-layer behavior during the 20th November 2003 geomagnetic storm over South Korea

The ionospheric F2-layer peak density (NmF2) and its height (hmF2) are of great influence on the shape of the ionospheric electron density profile Ne (h) and may be indicative of other physical processes within the ionosphere, especially those due to geomagnetic storms. Such parameters are often estimated using models such as the semiempirical international reference ionosphere (IRI) models or ...