Automated Radio Monitoring Systems

2018 ◽  
pp. 1-62 ◽  
Author(s):  
Anatoly M. Rembovsky ◽  
Alexander V. Ashikhmin ◽  
Vladimir A. Kozmin ◽  
Sergey M. Smolskiy
Keyword(s):  
Monitoring Systems ◽  
Radio Monitoring

scholarly journals Antenna system with omnidirectional radiation pattern for systems with phase algorithms of direction finding

2019 ◽  
Vol 30 ◽  
pp. 05021
Author(s):  
Alexander Zhuravlev ◽  
Alexander Golovkov ◽  
Polina Terenteva ◽  
Victor Malyshev ◽  
Michail Shmyrin ◽  
...  
Keyword(s):  
Radiation Pattern ◽  
Communication Systems ◽  
Elevation Angle ◽  
Experimental Studies ◽  
Antenna System ◽  
Monitoring Systems ◽  
Digital Television ◽  
Horizontal Polarization ◽  
Radio Monitoring ◽  
Radiating Element

Ommidirectional in azimuth plane antennas with horizontal polarization are used in communication systems of McWILL standard, digital television systems of DVB-T2 standard, radio monitoring systems, semi-active ranging using the target illumination with the television broadcast signal, and many other cases. In many cases, radar and radio monitoring systems use phase methods to determine the azimuth and elevation angle of the target. To view all azimuthal angles, ring arrays consisting of omnidirectional emitters, usually also represented by ring arrays, are used. This paper studies the characteristics of an omnidirectional radiating element of electrically small horizontal dipole elements. An expression is derived that relates the radius of the dipole ring array to the number of dipoles and the variation of the resulting radiation pattern. The results are confirmed by experimental studies.

scholarly journals Prospect for Using Low-Element Adaptive Antenna Systems for Radio Monitoring Stations

2021 ◽  
Vol 13 (5) ◽  
pp. 1-17
Author(s):  
Olga Shcherbyna ◽  
◽  
Maksym Zaliskyi ◽  
Olena Kozhokhina ◽  
Felix Yanovsky
Keyword(s):  
Electromagnetic Compatibility ◽  
Research Area ◽  
Antenna System ◽  
Monitoring Systems ◽  
Adaptive Antenna ◽  
Wide Field ◽  
Interference Signal ◽  
Radio Monitoring ◽  
Antenna Systems ◽  
Monitoring Stations

This article is devoted to the analysis of prospect to apply multifunctional adaptive antenna systems for radio monitoring stations. The review of publications done demonstrates that current antennas that are developed and used in radio monitoring systems to control and measure the parameters of electromagnetic radiation should be applicable to conduct accurate measurements in wide frequency range under the condition of interferences. The analysis shows that modern adaptive antenna systems are mostly developed for radar and telecommunications applications. In this context we consider possible ways to solve the problem of adapting radio monitoring devices to a complex electromagnetic environment using antenna systems with primary processing of received signals . It was found that the developers of the antennas, which are based on adaptive interference suppression methods, focus basically on the development and implementation of adaptation processes, limiting themselves only to solving electromagnetic compatibility problems. In such approach, the functions of direction finding and measurement of radiation field parameters important exactly for radio monitoring systems are mostly ignored. Therefore, this research area opens up a wide field for identifying new possibilities for constructing multifunctional antenna systems. Focusing on this direction of research, we consider as an example the constraction of a simple two-element adaptive antenna system, which can be used to measure the parameters of the electromagnetic field in radio monitoring systems. The main relations for the error of determining the direction of arrival of the interference signal with a simple two-element antenna are investigated. The influence of the stability of the antenna array parameters and functional units of signal processing onto the errors is estimated.

scholarly journals Review of EMR monitoring systems developed by the Mobile Radiocommunications Laboratory, National technical University of Athens

2014 ◽  
Vol 11 (3) ◽  
pp. 435-455 ◽  
Author(s):  
Ileana Popescu ◽  
Philip Constantinou
Keyword(s):  
Electromagnetic Radiation ◽  
Monitoring Systems ◽  
Automated Systems ◽  
Telecommunication System ◽  
The Public ◽  
Web Technologies ◽  
Radio Monitoring ◽  
Wireless Telecommunication ◽  
Measurement Algorithm ◽  
Time Basis

The purpose of this paper is to present fully automated systems that monitors on a real time basis the non-ionizing electromagnetic radiation emitted by wireless networks. The presented radio monitoring systems aim to perform repetitive and reliable measurements by using a well-defined measurement algorithm as well as high quality calibrated equipment and to inform the public - using the widespread web technologies - about the levels of the electromagnetic radiation emitted by any wireless telecommunication system.

scholarly journals Energy budget and methods for determining coordinates for a radiomonitoring system based on a small spacecraft

2021 ◽  
Vol 21 (2) ◽  
pp. 945
Author(s):  
Altay Aitmagambetov ◽  
Yuri Butuzov ◽  
Yuri Butuzov ◽  
Valery Tikhvinskiy ◽  
Valery Tikhvinskiy ◽  
...  
Keyword(s):  
Radio Emission ◽  
Energy Budget ◽  
Radio Spectrum ◽  
Monitoring Systems ◽  
Emission Sources ◽  
Radio Lines ◽  
Spectrum Monitoring ◽  
Small Spacecraft ◽  
Radio Monitoring ◽  
The Republic

The existing ground-based radio monitoring systems do not allow performing the functions and tasks of radio spectrum monitoring in a quality manner. Therefore, to improve the efficiency of the radio spectrum monitoring systems for countries with a large territory, such as the Republic of Kazakhstan, it is proposed to use low-orbit small spacecrafts as radio monitoring stations. The analysis of the energy budget of radio lines on the basis of existing radio electronic means on the territory of the Republic of Kazakhstan, carried out in this work, showed the possibility of using low-orbit small spacecrafts for performing the functions and tasks of radio monitoring. The paper proposes and develops a method for determining the coordinates of radio emission sources based on the goniometric method using scanning antennas on board of one spacecraft. The ranges of the antenna scanning angles are substantiated, and the estimates of the coordinates determination errors are made. Algorithms have been developed and computer programs have been compiled to determine the coordinates of the radio emission sources, which will make it possible to use this method at the initial stages of developing a radio spectrum monitoring system based on one small spacecraft.

scholarly journals ADVANCED METHOD OF ANTENNA CALCULATION FOR RADIO MONITORING SYSTEMS OF ON-BOARD RADIO SOURCES

2021 ◽  
pp. 42-50
Author(s):  
N. M. Karashchuk ◽  
S. O. Sobolenko ◽  
V. O. Savenko ◽  
I. A. Tsykalov
Keyword(s):  
Dielectric Constant ◽  
Power Supply ◽  
Dielectric Substrate ◽  
Power Line ◽  
Effective Dielectric Constant ◽  
Monitoring Systems ◽  
Radio Sources ◽  
Broadband Antennas ◽  
Radio Monitoring ◽  
Traveling Wave Antenna

Analysis of the experience of modern armed struggle shows that timely detection of signals onboard radio sources by radio monitoring systems is an important task. One way to ensure its solution is the use of compact broadband antennas in the centimeter range. Therefore the development and improvement of methods for calculating broadband compact antennas in the centimeter wave range is an important and relevant scientific and practical task. An improved method for calculating a traveling wave antenna based on irregular symmetrical slit lines located arranged on a multilayer dielectric substrate (Vivaldi antennas) is proposed, by taking into account the thickness of the dielectric substrate, the relative effective dielectric constant of the substrate layers and two-way power supply to improve the directional properties of the antenna and its coordination in a given frequency band. In particular, the formulas of the phase multiplier of the system (for two radiating elements) and the resulting pattern of the antenna take into account the two-way power supply and the thickness and relative dielectric constant of the substrate. These advanced formulas for calculating and selecting these options antennas, lengths; maximum and minimum slot width; the coefficient of opening the gap; the width of the strip of symmetrical microstrip power line at the connection of the coaxial power line; the width of the strip at the intersection with the slit line; the width of the symmetrical slit line at the base of the opening; the length of a quarter-wave transformer based on a symmetrical microstrip line; the length of the symmetric microstrip power line; slit length; resonator diameter; the radius of the cover of the structural capacitor. The practical significance of the results obtained lies in the possibility of an approximate calculation of compact broadband antennas in the centimeter wavelength range. The results make it possible to model and manufacture these antennas for radio monitoring systems for onboard radio sources.

scholarly journals The Enhanced Locating Performance of an Integrated Cross-Correlation and Genetic Algorithm for Radio Monitoring Systems

Sensors ◽  
2014 ◽  
Vol 14 (4) ◽  
pp. 7541-7562 ◽  
Author(s):  
Yao-Tang Chang ◽  
Chi-Lin Wu ◽  
Hsu-Chih Cheng
Keyword(s):  
Genetic Algorithm ◽  
Cross Correlation ◽  
Monitoring Systems ◽  
Radio Monitoring

Radio Monitoring Systems and Determination of Radio Emission Sources Location

2009 ◽  
pp. 317-391
Author(s):  
Anatoly Rembovsky ◽  
Alexander Ashikhmin ◽  
Vladimir Kozmin ◽  
Sergey Smolskiy
Keyword(s):  
Radio Emission ◽  
Monitoring Systems ◽  
Emission Sources ◽  
Radio Monitoring
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