Article

Article title ANALYSIS OF THE ELECTROMAGNETIC FIELD MULTIRAY STRUCTURE IN THE ROOM WITH A GROUP OF OBSTACLES
Authors A.I. Panychev, A.A. Vaganova
Section SECTION II. MODELING OF PHYSICAL PROCESSES AND SYSTEMS
Month, Year 03, 2016 @en
Index UDC 621.396.98
DOI
Abstract The approach to the estimation of the intensity of wireless local area network signals in the rooms, based on the original multi-level algorithm of three-dimensional ray tracing, adapted to the solution of the ray trajectory synthesis problems and based on the procedure of a preliminary analysis of the composition of the rays arriving at the receiving point at a predetermined position of the transmitter. In this paper we make a generalization of the algorithm on a group of several obstacles arbitrarily placed in the space of a room. The algorithm is illustrated in the model space as a rectangular parallelepiped, inside which there are three obstacles are also the same shape. Signal transmitter is located inside the room. The case where the three obstacles are grouped closely at one of the walls of the room is discussed. The results of the algorithm work for the direct beam is shown as paintings of shading obtained for the different heights of horizontal sections of the room. The shading pattern obtained for the different heights of horizontal sections of the room, showing the shadow generated by the obstacles for the rays reflected from the walls, are also presented. Analysis of the results shows that they are fully consistent with the postulates of geometrical optics and demonstrate the correct operation of the proposed algorithm. According to the results shown above it is clear that the shadow region occupies a significant part of both the interior space and bounding surfaces. Consequently, the use of the algorithm in order to exclude these areas from analysis in the next step of electromagnetic fields calculating will lead to a significant simplification of calculation and will consequently reduce time-consuming.

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Keywords Algorithm; multipath propagation; three-dimensional ray tracing, shadow region; the intensity of the electromagnetic field.
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