Results 31 to 40 of about 2,143 (164)
EPJ Web of Conferences, 2017 The proposal to use ground based radio telescopes for detection of Askaryan radio pulses from particle cascades arising when extremely high-energy (EHE > 1020 eV) cosmic rays (including neutrinos) interact with the lunar regolith of multi gigaton mass ...
Zheleznykh Igor +3 more
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IEEE Access, 2023 Emerging large-scale non-geostationary orbit (NGSO) satellite communication (SatCom) systems with more than thousands of satellites raise a serious concern of radio frequency interference (RFI) to the ground-based radio astronomy system (RAS).
Hlaing Minn, Zhixuan Fan
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Towards the possibility to combine LOFAR and GNSS measurements to sense ionospheric irregularities
Journal of Space Weather and Space Climate, 2023 Inhomogeneities within the ionospheric plasma density affect trans-ionospheric radio signals, causing radio wave scintillation in the amplitude and phase of the signals.
Flisek Paweł +18 more
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Low Frequency Radio Astronomy from Above the Ionosphere [PDF]
Symposium - International Astronomical Union, 2002 The GMRT represents a dramatic improvement in ground-based observing capabilities for low frequency radio astronomy. At sufficiently low frequencies, however, no ground-based facility will be able to produce high resolution images while looking through the ionosphere.
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Design a radio receiver for solar activity observation in VLF band
Al-Khawarizmi Engineering Journal, 2023 Solar activity monitoring is important in our life because of its direct or indirect influence on our life, not only on ionospheric communications. To study solar activity, researchers need measuring and monitoring instruments, these instruments are ...
Ahmed Al Banna
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Properties of PSR J1023+0038 Based on Kepler, TESS, and FAST
The Astrophysical Journal, 2023 The pulsar system PSR J1023+0038 is a very interesting binary with radio millisecond pulsar and low-mass X-ray binary transitions, which depend on the stellar accretion process. We have used Kepler light curves with 1 minute cadence and TESS light curves
Li-yun Zhang +6 more
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Spiking neural networks for radio frequency interference detection in radio astronomy
Communications PhysicsAutomated systems capable of real-time operation with minimal energy consumption are increasingly important in modern radio telescopes. Spiking Neural Networks (SNNs) promise efficient and dynamic spatio-temporal data processing.
Nicholas J. Pritchard +3 more
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Performance Analysis of Large-Scale NGSO Satellite-Based Radio Astronomy Systems
IEEE Access, 2021 Large-scale non-geostationary orbit (NGSO) satellite communication systems (SCSs) are emerging to play an important role for future global wireless communication.
Zhixuan Fan, Yucheng Dai, Hlaing Minn
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Low-Frequency Square Kilometer Array Pattern Optimization via Convex Programming
Applied SciencesA well-known and powerful convex optimization strategy is exploited to enhance the electromagnetic performance of the Square Kilometer Array Low-Frequency radio telescope.
Giada Maria Battaglia +5 more
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A roadmap towards a space-based radio telescope for ultra-low frequency radio astronomy
Advances in Space Research, 2020 The past two decades saw a renewed interest in low frequency radio astronomy, with a particular focus on frequencies above 30 MHz. However, at frequencies below 30 MHz, Earth-based observations are limited due to a combination of severe ionospheric distortions, almost full reflection of radio waves below 10 MHz, solar eruptions and human-made radio ...
Bentum, M.J. +12 more
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