The Trieste Solar Radio System: A Surveillance Facility for the Solar Corona

2001 ◽  
pp. 215-218
Author(s):  
M. Messerotti ◽  
P. Zlobec ◽  
M. Comari ◽  
G. Dainese ◽  
L. Demicheli ◽  
...  
Keyword(s):  
Solar Corona ◽  
Solar Radio ◽  
Radio System ◽  
System A

scholarly journals 67. Solar radio emission and the acceleration of magnetic-storm particles

1957 ◽  
Vol 4 ◽  
pp. 356-357 ◽  
Author(s):  
A. Schlüter
Keyword(s):  
Gravitational Field ◽  
Radio Emission ◽  
Solar Corona ◽  
Magnetic Storm ◽  
Solar Radio ◽  
Plasma Frequency ◽  
Solar Radio Emission ◽  
The Sun ◽  
Lower Frequencies

The shift of the emitted frequencies towards lower frequencies during a solar outburst is usually interpreted as due to a progressive rarefaction of the emitting gas. If one assumes that the emitted frequency is identical with the plasma frequency and furthermore that the density of the emitting plasma is similar to the density of the solar corona at the location of the radiating material, then it follows that this material is subject to an acceleration throughout the solar corona which compensates or exceeds the effect of the gravitational field of the sun.

scholarly journals Sensing-Throughput Tradeoff for Interweave Cognitive Radio System: A Deployment-Centric Viewpoint

2016 ◽  
Vol 15 (5) ◽  
pp. 3690-3702 ◽  
Author(s):  
Ankit Kaushik ◽  
Shree Krishna Sharma ◽  
Symeon Chatzinotas ◽  
Bjorn Ottersten ◽  
Friedrich K. Jondral
Keyword(s):  
Cognitive Radio ◽  
Radio System ◽  
Cognitive Radio System ◽  
System A

Distant early warning systems in the North American Arctic

Polar Record ◽  
1967 ◽  
Vol 13 (86) ◽  
pp. 595-596
Author(s):  
Robert E. Chasen
Keyword(s):  
Early Warning ◽  
Warning System ◽  
Greenland Ice Sheet ◽  
Early Warning Systems ◽  
Radio System ◽  
The North ◽  
System A ◽  
Us Air Force ◽  
North American Arctic ◽  
Distant Early Warning

The Distant Early Warning System (DEWLine) is a network of radar and communications stations stretching for some 3600 miles along the 69th parallel from Cape Lisburne, Alaska, to Cape Dyer, Baffin Island, and continuing across Davis Strait and the Greenland ice sheet to the east coast of Greenland. Thence it maintains communication with the North Atlantic Radio System from Keflavfk, Iceland, to Fylingdales Moor, England. The DEWDrop system, a tropospheric scatter communications system links Cape Dyer with the Inter-Continental Ballistic Missile Station at Thule, Greenland and another connects Thule with the DEWLine station FOX, on Foxe Basin. DEWLine stations are supervised and controlled by the US Air Force, by agreement with the Canadian and Danish Governments.

The optimality of fixed channel assignment policies for cellular radio systems

1992 ◽  
Vol 24 (02) ◽  
pp. 474-495
Author(s):  
Derek Robinson
Keyword(s):  
Channel Assignment ◽  
Average Rate ◽  
Heavy Traffic ◽  
Sufficient Conditions ◽  
Cellular Radio ◽  
Radio System ◽  
System A ◽  
Fixed Set ◽  
Fixed Channel Assignment ◽  
Cellular Radio Systems

In a cellular radio system a limited number of channels are available and neighbouring cells may not be allocated the same channel simultaneously because of the possibility of interference. Under heavy traffic, therefore, the average rate of losing calls may be reduced if certain calls are rejected as a matter of policy because of the potential inference they may cause. A fixed channel assignment policy is one in which each cell is allocated a fixed set of channels, this set typically being made smaller for cells likely to cause most interference. Sufficient conditions are found for the optimality of fixed channel assignment policies for a variety of layouts, and optimal and ‘good' policies are found in a number of other cases.

scholarly journals Radio Data and Computer Simulations for Shock Waves Generated by Solar Flares

1980 ◽  
Vol 91 ◽  
pp. 251-255
Author(s):  
Alan Maxwell ◽  
Murray Dryer
Keyword(s):  
Shock Waves ◽  
Solar Corona ◽  
Computer Simulations ◽  
Solar Flares ◽  
Solar Radio ◽  
Radio Bursts ◽  
Type Ii ◽  
Fast Mode ◽  
Solar Radio Bursts ◽  
Radio Data

Solar radio bursts of spectral type II provide a prime diagnostic for the passage of shock waves, generated by solar flares, through the solar corona. In this investigation we have compared radio data on the shocks with computer simulations for the propagation of fast-mode MHD shocks through the solar corona. The radio data were recorded at the Harvard Radio Astronomy Station, Fort Davis, Texas. The computer simulations were carried out at NOAA, Boulder, Colorado.

A Study of Multiple Type II Solar Radio Events

1982 ◽  
Vol 4 (4) ◽  
pp. 392-396 ◽  
Author(s):  
R.D. Robinson ◽  
K.V. Sheridan
Keyword(s):  
Solar Corona ◽  
Radio Burst ◽  
Solar Radio ◽  
Solar Radio Burst ◽  
Type Ii ◽  
Narrow Bandwidth ◽  
Wavelength Emission ◽  
The Subject ◽  
Multiple Type

A Type II solar radio burst is a relatively narrow-bandwidth metre-wavelength emission which drifts outward in the solar corona at a velocity between 500 and 1500 km s-1. It was first described by Wild and McCready (1950) and since then it has been the subject of numerous investigations (see e.g. McLean 1974; Nelson and Robinson 1975).

Solar Radio Diagnostic for Space Weather with the Trieste Solar Radio System 2.0

2020 ◽  
Author(s):  
Giovanna Jerse ◽  
Valentina Alberti ◽  
Marco Molinaro ◽  
Veronica Baldini ◽  
Roberto Cirami ◽  
...  
Keyword(s):  
Space Weather ◽  
Solar Radio ◽  
Radio System

Stepwise Emergence and Development of Microwave Emission of Active Regions – A Fundamental Property of Active Solar Corona

1994 ◽  
Vol 144 ◽  
pp. 509-512
Author(s):  
G. Ya. Smolkov ◽  
V. P. Nefedyev ◽  
A. M. Uralov ◽  
N. N. Kardapolova
Keyword(s):  
Solar Corona ◽  
Radio Telescope ◽  
Solar Radio ◽  
Fundamental Property ◽  
Active Regions ◽  
Space Mission ◽  
Microwave Emission ◽  
Ground Support ◽  
Siberian Solar Radio Telescope

AbstractThis paper has two goals: to report the informative merits of the Siberian solar radio telescope (SSRT) for ground-support of the SOHO or some other space mission, and provide a generalized presentation of one of the original results obtained at SSRT that indicates, we believe, a fundamental property of the emission from solar corona active regions (AR).

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