在不同高度的无线电源系统工作条件下,确定uhf / VHF范围通信无线电信道干扰区边界的算法

O. Iohov, V. Maliuk, Ye. Kaplun
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引用次数: 0

摘要

提出了在无线电干扰系统条件下,确定移动无线电通信UHF / VHF范围内稳定无线电接收区域最大尺寸的方法。无线电打算使用定向天线或屏幕。增加稳定无线电接收区域的大小是通过使用无线电信道模型在天线装置的每个点的方位角和角度上的最佳方向来提供的,该模型允许考虑无线电干扰源的空间位置和数字3D天线方向图来计算信号/干扰比。接收器。在实际干扰条件下使用定向天线确定移动无线电稳定交换区边界的问题,可以用在标量场中求单条等值线的问题来表述。为了确定等值线地图上各点的坐标,提出了一种改进的波浪算法,该算法复杂度低,结果清晰。所提出的数值方法的实际应用实例使我们得出结论,对于特定情况,用解析方法得到的结果与已知作品中的数据不一致。同时,采用的数值方法通过考虑不同高度的多个无线电干扰源的位置以及信号接收机天线装置的数字三维方向图的最佳方向,大大扩展了计算的可能性。与使用带偶极子天线的移动无线电相比,将容噪无线电交换区的面积增加2.8倍,从而证实了所提出方法的有效性。在以方位角对接收机定向天线进行最佳定向的情况下,再以位置角进行优化,可获得1.5倍的增益。
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ALGORITHM FOR DETERMINING THE BOUNDARIES OF THE ZONE OF INTERFERENCE OPERATION OF THE RADIO CHANNEL OF THE UHF / VHF RANGE COMMUNICATION IN THE CONDITIONS OF OPERATION OF THE RADIOSHENOPRIAD SOURCE SYSTEM AT DIFFERENT HEIGHTS
A method for determining the limits of the maximum size of the stable radio reception area in the UHF / VHF range for mobile radio communication under the conditions of the radio interference system is proposed. The radio is intended to use a directional antenna or screen. Increasing the size of the stable radio reception area is provided by the optimal orientation at each point of the antenna device in azimuth and angle using the model of the radio channel, which allows to calculate the signal / interference ratio taking into account the spatial location of radio interference sources and digital 3D antenna pattern. receiver. The problem of determining the boundaries of the zone of stable radio exchange of mobile radio means using directional antennas in the conditions of real interference is formulated in the form of the problem of finding a single isoline in a scalar field. To determine the coordinates of the points of the map belonging to the isoline, a modification of the wave algorithm is proposed, which is low complexity and unambiguous results. Examples of practical use of the proposed numerical method allow us to conclude that the results are inconsistent with the data obtained in the known works by the analytical method for a particular case. At the same time, the numerical approach used significantly expands the possibilities of calculations by taking into account the location of multiple sources of radio interference at different altitudes, as well as the optimal orientation of the digital 3D - pattern of the antenna device of the signal receiver. The effectiveness of the proposed method is confirmed by increasing the area of the noise-tolerant radio exchange zone by 2.8 times in relation to the option of using a mobile radio with a dipole antenna. For the case of optimal orientation of the directional antenna of the receiver by the azimuth angle, additional optimization by the angle of the place gives a gain of 1.5 times.
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