Results 101 to 110 of about 7,904 (219)

Radio frequency science considerations [PDF]

, 1974
Use of the 400 MHz telecommunications system to obtain scientific information, to provide backup information for the experiments flown, and to obtain measurements which aid in designing future probes is considered.
Croft, T. A.
core   +1 more source

Occurrence of ionospheric scintillation during geomagnetic storms in Indonesia (2003–2024) using superposed epoch analysis

Earth and Planetary Physics
Ionospheric scintillation refers to rapid radio signal amplitude and phase fluctuations due to small-scale irregularities in the ionosphere. Occurring primarily at equatorial and low latitudes, scintillation is linked to equatorial plasma bubbles (EPBs),
Angga Yolanda Putra, Theodosius Marwan Irnaka, Prayitno Abadi, La Ode Muhammad Musafar Kilowasid, Fitri Nuraeni, Erlansyah, Suraina, Afif Rakhman   +7 more
doaj   +1 more source

A theoretical and experimental study of the ionosphere using radio signals from earth satellites progress report no. 9, 1 jan. - 30 jun. 1964 [PDF]

Morphology of ionosphere using radio signals from earth ...
Swenson, G. W., Yeh, K. C.
core   +1 more source

On the Extraordinary L‐Band Scintillation Event Observed in the American Sector During the 23–24 March 2023 Geomagnetic Storm

Space Weather
We report an extraordinary L‐band scintillation event detected in the American sector on the night of 23–24 March 2023. The event was detected using observations distributed from the magnetic equator to mid latitudes.
J. Gomez Socola, F. S. Rodrigues, J. Sousasantos, M. R. Quesada, R. Heelis, Y. Otsuka, A. Shinbori, M. Nishioka, S. Perwitasari   +8 more
doaj   +1 more source

TEC and Scintillations in the Ionosphere above Greenland

, 2021
Sarah Beeck, Anna B. O. Jensen, Per Knudsen   +2 more
openalex   +1 more source

Telecommunications in cometary environments [PDF]

Propagation effects on telecommunications in a cometary environment include those due to dust, the inhomogeneous plasma of the coma and tail, and ionization generated by impact of neutral molecules and dust on the spacecraft.
Flock, W. L.
core   +1 more source

Testing of an Ultra-tightly coupled GPS/INS under Strong Ionospheric Scintillation

, 2014
Toshiaki Tsujii, Takeshi Fujiwara, Tetsunari Kubota, Yukihiro Kubo   +3 more
openalex   +2 more sources

Handbook for the estimation of microwave propagation effects: Link calculations for earth-space paths (path loss and noise estimation) [PDF]

A single model for a standard of comparison for other models when dealing with rain attenuation problems in system design and experimentation is proposed. Refinements to the Global Rain Production Model are incorporated.
Blood, D. W., Crane, R. K.
core   +1 more source

Prediction of Ionospheric Scintillations Using Machine Learning Techniques during Solar Cycle 24 across the Equatorial Anomaly

Atmosphere
Ionospheric scintillation is a pressing issue in space weather studies due to its diverse effects on positioning, navigation, and timing (PNT) systems. Developing an accurate and timely prediction model for this event is crucial.
Sebwato Nasurudiin, Akimasa Yoshikawa, Ahmed Elsaid, Ayman Mahrous   +3 more
doaj   +1 more source

Performance Analysis of Ionospheric Scintillation Effect on P-Band Sliding Spotlight SAR System. [PDF]

Sensors (Basel), 2019
Yu L, Zhang Y, Zhang Q, Ji Y, Dong Z.
europepmc   +1 more source