What is ionosphere scintillation?

Ionospheric scintillation is the rapid modification of radio waves caused by small scale structures in the ionosphere. Severe scintillation conditions can prevent a GPS receiver from locking on to the signal and can make it impossible to calculate a position.

What causes ionospheric scintillation?

4 Ionospheric scintillation. Scintillations are the rapid fluctuations in the phase and amplitude of the wave. These are caused by local rapid variations in the refractive index of the medium through which the wave is traversing. Scintillation is mainly caused by the local variation of the ionospheric electron density.

Which band is most affected by ionospheric disturbances and scintillation?

Ionosphere scintillation can effect satellite telecommunication up to Ku-band. Nighttime scintillation can be attributed to large-scale inhomogeneity in the F-region of the ionosphere predominantly between heights of 200 and 600 km.

What is satellite communication scintillation?

In trans-ionosphere propagation, scintillation refers to the rapid variation of the amplitude and phase of a received signal. Scintillation is produced by structure in the ionosphere.

What is scintillation process?

Scintillation is the process in which the energy from a certain radiation interacting with a volume of sensitive material (called a scintillator) is converted into electromagnetic waves. The frequency of the emitted electromagnetic waves is within or near the visible spectrum.

What is meant by scintillator?

1 : an act or instance of scintillating especially : rapid changes in the brightness of a celestial body. 2a : a spark or flash emitted in scintillating. b : a flash of light produced in a phosphor by an ionizing event. 3 : a brilliant outburst (as of wit) 4 : a flash of the eye.

What frequency is most affected by scintillation?

10 MHz to 10 GHz
Ionospheric scintillation could affect radio signals ranging from 10 MHz to 10 GHz, and the phenomenon varies with time and space. Generally speaking, scintillation is severer in the equatorial area and high-latitude regions than in the middle-latitude area.

What is frequency scintillation?

Scintillation occurs when a radio frequency signal in the form of a plane wave traverses a region of small scale irregularities in electron density.

What is a scintillator used for?

Scintillators are materials that are able to convert high energy radiation such as X or gamma-rays to a near visible or visible light. They are widely used as detectors in medical diagnostics, high energy physics and geophysical exploration (ref.

What are scintillator detectors?

Scintillation detectors are used for the determination of the high-energy part of the X-ray spectrum. In scintillation detectors the material of the detector is excited to luminescence (emission of visible or near-visible light photons) by the absorbed photons or particles.