Accurate solving method for passive interference of shared iron tower

A technology of passive interference, iron tower, applied in the direction of advanced technology, orthogonal multiplexing system, multiplexing communication, etc.

Active Publication Date: 2021-04-09
CHINA THREE GORGES UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It lays a theoretical foundation for the follow-up research on passive interference of shared iron towers, and it is of great significance to solve the passive interference of existing transmission lines

Method used

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  • Accurate solving method for passive interference of shared iron tower
  • Accurate solving method for passive interference of shared iron tower
  • Accurate solving method for passive interference of shared iron tower

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Experimental program
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Embodiment

[0113] The tower type of the shared iron tower is a typical 110kV cat-head iron tower. The height of the iron tower is 20m, and the L200 angle steel with a width of 0.2m is used, and three base station antennas are installed. The model of the base station antenna is DB878G65A-XY, the working frequency is 960MHz, the power is 10W, and the model is modeled according to the real size and other parameters. Taking the center of the bottom of the shared iron tower as the origin of the coordinate system, establish as Figure 4 In the Cartesian coordinate system (X, Y, Z) shown, the center point coordinates of base station antennas T1, T2 and T3 are (5,-5,15), (5,5,15) and (-5,5, 15), the coordinate unit is m. , the frequency of the incident plane wave at the station is 0.3-3GHz, the amplitude is 1V / m, and it is incident from the negative half-axis of the Y-axis at 0°. Three different receiving stations are selected, that is, the coordinates of the observation point r are (0,1500, 2)...

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Abstract

The invention discloses an accurate solving method for passive interference of a shared iron tower. A scatterer model and an incident field model in the passive interference problem of the shared iron tower are established; secondly, according to the scatterer model and the incident field model obtained in the first step, boundary conditions on all scatterers of the shared iron tower after second-order coupling scattering are derived, the boundary conditions are simultaneous, and then an equivalent source under the coupling background is solved; and a total scattering field equation formed by each scatterer unit is established according to the equivalent source under the solving coupling background, and a scattering field when the shared iron tower exists is solved, thereby realizing the solving of the passive interference of the shared iron tower. The method can be used for accurately solving the passive interference level of the shared iron tower, a theoretical basis is laid for subsequent passive interference research of the shared iron tower, and the method has important significance in solving passive interference of an existing power transmission line.

Description

technical field [0001] The invention relates to the technical field of electromagnetic compatibility of high-voltage power transmission and transformation projects, in particular to an accurate solution method for passive interference of shared iron towers. Background technique [0002] The increasing number of power transmission lines has caused an increasing problem of passive interference to adjacent radar stations. In particular, as a new product under the "sharing economy" model, shared iron towers have developed rapidly in transmission lines. However, since the shared iron tower is directly installed on the transmission tower with a base station antenna that continuously emits high-frequency communication signals, the excitation source and electromagnetic scatterer model in the problem of solving the passive interference of the traditional transmission tower to adjacent radio stations have changed, resulting in the transmission line Passive interference mechanisms and...

Claims

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Application Information

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IPC IPC(8): H04J11/00G06F30/20
CPCH04J11/0056G06F30/20Y02D30/70
Inventor 唐波刘兴发肖乔莎干喆渊张楠袁发庭
Owner CHINA THREE GORGES UNIV
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