System for measuring electromagnetic compatibility based on geographic information system and programmable attenuator

Abstract

The invention discloses a system for measuring the electromagnetic compatibility based on a geographic information system and a programmable attenuator. Transmitted signals are received through a direct injection method, interference signals are obtained after programmable attenuation is conducted, measurement and playing back are conducted, output signals are illuminated onto a receiving device through a direct injection method or an all-directional transmitting antenna radiated transmission method, and then the electromagnetic compatibility judgment is conducted. According to the system, the simulation result of a real interference signal, the simulation result of the receiving device and the simulation result of an electromagnetic compatible and coupling path are combined so that the electromagnetic compatibility of the receiving device and a transmitting device can be evaluated, the result is closer to the real condition, and the accuracy is higher. The system is suitable for narrow bandwidth attenuation, but key interference frequency points can be measured in a segmented mode, the measurement method is simple and easy to operate, and the measurement efficiency is improved. Measurement data can be displayed through an instrument such as a GIS playback system and a spectrum analyzer. The measurement can be conveniently conducted, and the data are visualized.

Description

technical field [0001] The present invention relates to an electromagnetic compatibility test system based on a geographic information system and a programmable attenuator, specifically, a segmented narrowband programming calculation of the radio wave propagation loss based on a programmable attenuator, and the result is used to measure And systems and methods for evaluating electromagnetic compatibility of receiving equipment. Background technique [0002] The modern electromagnetic environment is very complex, and the electromagnetic environment in the battlefield is particularly harsh. There is no relatively complete electromagnetic environment testing and evaluation system in China. With the rapid development of modern civil wireless communication, especially mobile communication services, radio wave propagation prediction and electromagnetic compatibility testing and evaluation play an increasingly important role in the optimization of communication and electronic equi...

AI Technical Summary

Problems solved by technology

The present invention applies the electromagnetic compatibility test system based on the geographic information system and the programmable attenuator, and can solve the frequent mobilization of equipment and the consumption of the electromagnetic compatibility test between the transmitting equipment and the receiving equipment of the large-scale movement in a relatively fast and simple manner. The problem of large human and material resources

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