News

Vacancies

 

Work conditions:

  • by contract
  • full-time   
Please submit your CV to:

mark@yetri.am

info@yetri.am 

Phone:(+37410)566061 

 

More...



Publications
PDF Print E-mail
Publications - Publications

Multipath reception:  equivalent model and method of virtual antennas 

 V.H.Avetisyan, M.V.Markosyan, V.V. Grigoryan

"Antenny" (Antennas) №6 (205)2014

  The reception problem depending on directional properties of transmitting and receiving antennas, and also on locations and properties of a set of the lumped reradiating objects is considered in the context of general problem of multipath propagation of waves. The problem is solved by the method named as the method of virtual antennas. The method is based on constructed equivalent model of reception in which the receiving antenna is replaced hypothetically by the set of virtual receiving antennas mutually spaced with accordance the beams falling on the replaced receiving antenna. the results arising from the obtained common decision in special cases are compared with the earlier known.

 

 
PDF Print E-mail
Publications - Publications

Patent №2803A,  ICI  G01 29/00

 The device for measuring of the near-surface antenna parameters by flyby method.

Authors: M.V. Markosyan, V.H. Avetisyan, A.A Hovhannisyan, A.K. Aharonyan, A.A. Sargsyan

 

 
PDF Print E-mail
Publications - Publications

Patent №2814A, ICI  G01 29/00

Method of the near-surface  antenna directional pattern measurement by helicopter

Authors:  M.V. Markosyan, V.H. Avetisyan, A.H. Nikoghosyan, A.A. Sargsyan

 

 
PDF Print E-mail
Publications - Publications

 Design of MSS model with one servicing device describing the water system management and with limited waiting time

M.V.Markosyan, A.V. Simonyan. Yerevan State University of Architecture and Construction – BULLETIN  No1, 2011, pages 103-111

 A formal model of Mass Servicing System with one servicing device and limited waiting time as well as the analytical design thereof have been considered in the paper. The requirements for the operation of the system are defined and relevant formula have been brought out, through which one can estimate the first two moments of distribution of probabilities of losing task in the system because of limited wait time. It is assumed that the input flow of task is described by gamma distribution.

 
PDF Print E-mail
Publications - Publications

Development of the Software Architecture for Control and Diagnosis of Devices in Heterogeneous Systems

M.V. Markosyan, A.L.Grigoryan, T.A.Papoyan. 

Proceedings of International Scientific Conference IRPHE-2010./ Ashtarak-Aghveran, Armenia Russia, September 23-26, 2010y., - C -. In press

 Architecture of software for automatic diagnosis and management of devices in radiotechnical heterogeneous systems is being considered. The proposed architecture is modular, which provides simplicity and flexibility. We consider in detail the structure and functions of all modules. Management and diagnosis is based on the expert data, which are defined in the scripting language JavaScript. 

 
PDF Print E-mail
Publications - Publications

A method of the video compression quality measurement

S.K.Kocharyan.

 Proceedings of International Scientific Conference IRPHE-2010./ Ashtarak-Aghveran, Armenia Russia, September 23-26, 2010y., - In press.

 In this article describes  the method of video compression quality measurement. That method has a open  architecture and  doesn’t  rigidly bound with only one type of compression. The advantages of that method is  in its   universality, dynamism and ability to be improved depending on development of   video compression algorithms.

 
PDF Print E-mail
Publications - Publications

Automated complex for identification of antennas parameters in SMW band via planar scanning of their near-field configuration 

V.G. Avetisyan

 Proceedings of International Scientific Conference IRPHE-2010./ Ashtarak-Aghveran, Armenia Russia, September 23-26, 2010y., - C -. In press


An equipment design is suggested for antenna testing in short millimeter waveband (SMW), based on amplitude and phase measurements over a plane in the near field of the antenna under test (AUT). Design solutions are offered for units, including the mechanical scanning system, the radio measurement system and the automatic control system. All requirements correspond to the modern technology level. Requirements are developed for the parameters of each unit to attain measurement accuracies comparable to those in similar centimeter waveband antenna measurements. The proposed solutions enable universality of the equipment across different spectral intervals of SMW, hence imply the possibility of reducing antenna testing costs in this frequency range. 
 

 

 
« StartPrev1234567NextEnd »

Page 4 of 7
ISO.jpg

Advertising