scholarly journals GPS TEC and ITEC from digisonde data compared with NEQUICK model

2005 ◽  
Vol 2 ◽  
pp. 269-273 ◽  
Author(s):  
J.-C. Jodogne ◽  
H. Nebdi ◽  
R. Warnant
Keyword(s):  
Real Time ◽  
Electron Density ◽  
Density Profile ◽  
Electron Density Profile ◽  
Ionospheric Model ◽  
Gps Receiver ◽  
Real Time Processing ◽  
Time Processing ◽  
Gps Tec ◽  
Royal Observatory

Abstract. At the Dourbes station, a digisonde 256 is colocated with a Turbo Rogue GPS receiver. Real time processing of the digisonde data gives the electron density profile and the ITEC value (SAO file) for each sounding. The GPS receiver produces data that are treated at the Royal Observatory in order to extract a vertical TEC. Running the wellknown NeQuick ionospheric model allows to compute vertical TEC values. Comparisons of the results obtained in 1996 and 2001 by these different approaches are shown.

scholarly journals Real-time ionospheric N(h) profile updating over Europe using IRI-2000 model

2005 ◽  
Vol 2 ◽  
pp. 299-303 ◽  
Author(s):  
D. Buresova ◽  
Lj. R. Cander ◽  
A. Vernon ◽  
B. Zolesi
Keyword(s):  
Real Time ◽  
Electron Density ◽  
Density Profile ◽  
Space Weather ◽  
Electron Density Profile ◽  
Ionospheric Model ◽  
Ionospheric Electron Density ◽  
European Area ◽  
Quiet Day ◽  
The Eu

Abstract. In this paper a method for real-time updating of ionospheric electron density profile, N(h), over Europe using an ionospheric model and real-time measurements at ionosonde locations is presented. The N(h) profile update over European area has been simulated with the IRI-2000 ionospheric model and real-time N(h) profiles obtained from the EU COST271 Action Space Weather Database. Preliminary findings are shown for the geomagnetically quiet day on 4 May 2003 and disturbed day on 24 May 2002. Results are discussed in the context of real-time N(h) profile updating capabilities and effectiveness.

scholarly journals Gravity waves propagation in the thermosphere observed from electron density profile and total electron content measurements

1997 ◽  
Vol 40 (6) ◽  
Author(s):  
M. Anzidei ◽  
C. Bianchi ◽  
L. Ciraolo ◽  
M. Pezzopane ◽  
C. Scotto
Keyword(s):  
Electron Density ◽  
Total Electron Content ◽  
Gravity Waves ◽  
Density Profile ◽  
Electron Density Profile ◽  
Electron Content ◽  
Gps Receiver ◽  
Total Electron ◽  
Waves Propagation ◽  
Short Periodicity

Ionospheric observations with five minute intervals between ionograms were made during a campaign from 19th to 23rd June 1996 at the Rome station (41.8N, 12.5E). The data obtained from ionospheric vertical sounding have been analysed together with the Total Electron Content (TEC) data obtained by the GPS receiver measurements. Both the apparatus were installed in the same station. Short periodicity phenomena occurring in the considered period were observed and interpreted as resulting from the propagation of AGWs in the thermosphere. TEC and electron density were then analysed during AGWs activity.

Estimation of the electron density profile in the D region from rocket measurement of VLF signals from a ground based transmitter

1981 ◽  
Vol 64 (11) ◽  
pp. 68-74
Author(s):  
Isamu Nagano ◽  
Masayoshi Mambo ◽  
Tetsuo Fukami ◽  
Koji Namba ◽  
Iwane Kimura
Keyword(s):  
Electron Density ◽  
Density Profile ◽  
Electron Density Profile ◽  
Rocket Measurement ◽  
D Region

GPU Acceleration of Algorithm to Design Directional Volumetric Display for Real-time Processing

2019 ◽  
pp. 989
Author(s):  
Daiki Matsumoto ◽  
Ryuji Hirayama ◽  
Naoto Hoshikawa ◽  
Hirotaka Nakayama ◽  
Tomoyoshi Shimobaba ◽  
...  
Keyword(s):  
Real Time ◽  
Gpu Acceleration ◽  
Real Time Processing ◽  
Time Processing ◽  
Volumetric Display

Putting up barriers

2017 ◽  
Author(s):  
David J. Lobina
Keyword(s):  
Knowledge Base ◽  
Real Time ◽  
Language Processing ◽  
Cognitive Domain ◽  
Linguistic Knowledge ◽  
Levels Of Explanation ◽  
Real Time Processing ◽  
Time Processing ◽  
Neural Underpinnings ◽  
Different Levels

The study of cognitive phenomena is best approached in an orderly manner. It must begin with an analysis of the function in intension at the heart of any cognitive domain (its knowledge base), then proceed to the manner in which such knowledge is put into use in real-time processing, concluding with a domain’s neural underpinnings, its development in ontogeny, etc. Such an approach to the study of cognition involves the adoption of different levels of explanation/description, as prescribed by David Marr and many others, each level requiring its own methodology and supplying its own data to be accounted for. The study of recursion in cognition is badly in need of a systematic and well-ordered approach, and this chapter lays out the blueprint to be followed in the book by focusing on a strict separation between how this notion applies in linguistic knowledge and how it manifests itself in language processing.

Sign in / Sign up

Export Citation Format

Share Document