Ionosphere and Radio Wave Propagation
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Recent papers in Ionosphere and Radio Wave Propagation
Adanya peristiwa Gerhana matahari cincin tanggal 26 Desember 2019 merupakan kesempatan untuk mengetahui respon ionosfer terhadap terjadinya gerhana matahari. Gerhana matahari cincin terjadi mulai pukul 10.30 WIB dan berakhir pukul 14.00... more
We identify an observer frame error which influenced physics at a critical time. Refraction due to relative media motion was considered from the incorrect inertial frame for Stellar Aberration by Lodge (1893) after Michelson's null... more
Scintillation is a satellite signal reception interference phenomena due to plasma instabilities and plasma irregularities in the ionosphere layer. Scintillation can be caused by many sources. Therefore, this study was conducted to... more
The development of regional ionospheric Total Electron Content (TEC) models has contributed to understanding the behavior of ionospheric parameters and the coupling of the ionosphere to space weather activities on both local and global... more
Ionospheric F-region irregularities can acutely affect navigation and communication systems. To develop predictive capabilities on their occurrence, it is key to understand their variabilities in a wide range of time scales. Previous... more
An analysis of the use of historical retrospections in the history of the expedition of airship ITALIA 1928
"As a wide array of services and applications are becoming more reliant on Global Navigation Satellite System (GNSS) technology, its continuity requirements are naturally becoming more stringent. The ionosphere scintillation phenomenon is... more
This work presents, for the first time, the analysis of the occurrence of ionospheric irregularities during geomagnetic storms at Tucumán, Argentina, a low latitude station in the Southern American longitudinal sector (26.9°S, 294.6°E;... more
In this article, we present a global median model of the ionospheric F2-layer peak height (h m F2), which we named Satellite and Digisonde Model of the F2 layer (SDMF2). This model is based on the radio-occultation data of the satellite... more
Variations of the ionospheric F2 region critical frequency (foF2) have been investigated statistically before earthquakes during 1980– 2008 periods in Japan area. Ionosonde data was taken from Kokubunji station which is in the earthquake... more
Research in the field of Wireless Sensor Networks (WSNs) has been plagued by difficulties in performing realistic simulations. For instance, most of the existing coverage optimization techniques presuppose that the region covered by a... more
In this study the effect of solar radiation of the radio frequency interference (RFI) is reviewed. The effect of solar radiation on radio signal is investigated using the spectrum analyzer to determine the radio frequency interference... more
This work presents, for the first time, the analysis of the occurrence of ionospheric irregularities during geomagnetic storms at Tucuma ´n, Argentina, a low latitude station in the Southern American longitudinal sector (26.9S, 294.6E;... more
The Fresnel–Fizeau effect is a special relativistic effect that makes the speed of light dependent on the velocity of a transparent, moving medium. We present a theoretical formalism for discussing propagation of electromagnetic signals... more
A number of ionosondes have been operated in China to detect ionospheric disturbances for many years. These ionosondes, however, are not very suitable for the short-period (<15 min) disturbances due to their poor time resolutions (>5... more
Bridge the gap between theoretical education and practical work experience with this hands-on guide to GNSS, which features: • A clear, practical presentation of GNSS theory, with emphasis on GPS and GLONASS • All the essential theory... more
We have developed a statistical method of determining the dispersion and spectral properties of travelling ionospheric disturbances (TIDs) based on analyzing the power spectra and cross spectra of variations in total electron content... more
Over-the-horizon radar (OTHR) uses ionospheric reflection to propagate HF transmissions to long range (∼500–5000 km). The ionosphere acts as a dynamic “mirror” that varies diurnally, seasonally, and with the solar cycle. Geolocation of... more
In order to detect and study the ionospheric response to solar flares (transient high energy solar radiation), we have constructed a radio receiver station at Mexico City, which is part of the “Latin American Very low frequency Network”... more
The research program involved development of an innovative system design concept and method of using phase coherent dual frequency earth orbiting satellite VHF/UHF transmissions to measure frequency-dependent phase dispersion and signal... more
Perturbations of the ionosphere related to geomagnetic storms have been an object of a close attention of ionospheric researchers for several decades and therefore are relatively well known. Effects of geomagnetic storms to atmospheric... more