Development of a Method for Boundary Determination of the Noise-resistant Area of the UHF/VHF Band

Abstract

A method is proposed for determining the boundaries of the maximum largest zone of stable radio reception in the UHF/VHF range using beam antenna system under the action of several sources of radio interference located at different altitudes. The increase in the size of the stable radio reception area is ensured by the optimal orientation of the antenna arrangement at each point in azimuth and angular altitude using the radio communication channel model. To determine the coordinates of the map points belonging to the boundary, a modification of the wave algorithm is proposed. The conducted experimental studies for the Mototrbo TM DP4800 and Kenwood TK-8302 radio equipment allow concluding that the theoretical positions and computer simulation analysis results obtained are reliable.

Bounds Calculation Method of Electromagnetic Availability Zone of Radio Emission Source

“…To construct an algorithm for determining the bounds of the EMA zone of a radio emission source Eq. ( 8), we use the modification of the wave algorithm given in the work [2]. We will consider the pixel matrix of the image of a topographic terrain map with a tactical situation as a discrete The modification of the algorithm from [2] is shown in the Fig.…”

“…Consider taking into account the range of radio emission sources in the problem of protecting a radio channel from an enemy radio interference system [2,15].…”

“…The UHF/VHF radio communication channel model, considered in [2,15], contains objects (Fig. 9) with the following parameters:…”

“…Fig. 9 Using a beam antenna system of receiver to protect against interference [2] The interference immunity communication zone in the azimuthal plane was defined in [2,15] as…”

“…Clarifying the range of the UHF/VHF radio source is an important issue in the tasks of organizing the mobile radio communication channel operation, especially when conducting local combat operations by tactical units, among which are the following [1][2][3][4]: analysis of the radio communication channel operability conditions, decrease in the effectiveness of enemy radio reconnaissance, and protection of the radio channel from the radio interference system.…”