scholarly journals Regional and temporal changes in the main parameters of frequency dispersion in wideband transionospheric radio communication channels

2021 ◽  
Vol 1991 (1) ◽  
pp. 012007
Author(s):  
D V Ivanov ◽  
V A Ivanov ◽  
N V Ryabova ◽  
A A Kislitsin
Keyword(s):  
Communication Channels ◽  
Frequency Dispersion ◽  
Temporal Changes ◽  
Radio Communication

scholarly journals Angular Spread Quantification of Multi-Antenna Vehicular Radio Communication Channels

2018 ◽  
Author(s):  
Abrar Ahmed ◽  
Syed Junaid Nawaz ◽  
Sardar Muhammad Gulfam ◽  
Shurjeel Wyne ◽  
Mohammad N. Patwary ◽  
...  
Keyword(s):  
Communication Channels ◽  
Angular Spread ◽  
Radio Communication

scholarly journals MULTIFUNCTIONAL ANTENNA DEVICE FOR PROTECTION OF RADIO COMMUNICATION CHANNELS OF UNITS OF LAW ENFORCEMENT FORCES

2020 ◽  
Vol 4 (3) ◽  
pp. 150-155
Author(s):  
Valentyn Kozlov ◽  
Yury Kozlov ◽  
Olexander Shcherbina ◽  
Olena Novykova ◽  
Olexander Iokhov
Keyword(s):  
Law Enforcement ◽  
Communication Channels ◽  
Radio Communication

Research on Query Mechanism of Moving Object Database

2014 ◽  
Vol 530-531 ◽  
pp. 823-826 ◽  
Author(s):  
Chun Ping Wang
Keyword(s):  
Nearest Neighbor ◽  
Frequency Dispersion ◽  
Radio Communication ◽  
Mobile Environment ◽  
Moving Object Database ◽  
Time Domain Signal ◽  
Tree Data ◽  
Historical Trajectory ◽  
Tree Data Structure ◽  
Nearest Neighbor Queries

Since the mobile radio communication in a wireless mobile environment, which inevitably subject to fading and interference effects of the various signals, multipath and time-domain signal to bring the mobile domain and frequency dispersion problems, bandwidth resources restricted and transmission delay increases and so on. In this paper, the use of Class R-Tree data structure to store the data on the basis of historical trajectory, the update query results by the beach line iterative way to solve the problem of nearest neighbor queries efficiently update existing intermediate results.

Simulator of Radio Communication Channels for Determining the Main Parameters of Spatial Noise Compensator

2005 ◽  
Vol 63 (4) ◽  
pp. 347-358
Author(s):  
D. V. Kabaev ◽  
E. A. Karacharov ◽  
V. E. Kocheganov ◽  
S. A. Metelyov ◽  
O. S. Razuvaeva
Keyword(s):  
Communication Channels ◽  
Radio Communication ◽  
Spatial Noise
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