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Ground cascade system external radio frequency electromagnetic environment test method

A ground cascading and test method technology, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve the problem of inability to realize the external radio frequency electromagnetic environment assessment of the ground cascading system, achieve easy engineering practice, reduce test costs, good practicability

Inactive Publication Date: 2015-03-04
ARMY ENG UNIV OF PLA
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Problems solved by technology

[0005] For the defects of the prior art, the purpose of the present invention is to provide a test method for the external radio frequency electromagnetic environment of the ground cascade system, aiming at solving the problem that the ground cascade system as a whole cannot be in the national military standard GJB1389A-2005 " Difficulties in the assessment of the external radio frequency electromagnetic environment specified in the System Electromagnetic Compatibility Requirements

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  • Ground cascade system external radio frequency electromagnetic environment test method
  • Ground cascade system external radio frequency electromagnetic environment test method
  • Ground cascade system external radio frequency electromagnetic environment test method

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[0017] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0018] Such as figure 1 As shown, the test method of the external radio frequency electromagnetic environment of the ground cascade system of the present invention comprises the following steps:

[0019] (1) Arrange one of the subsystems at the open-field test location, and set up the rest of the subsystems so that the distance between them and the subsystem at the open-field test location is the At this time, the subsystem at the open field test position is in the working state prone to electromagnetic susceptibility, and the rest of the subsystems are working at the maximum power state; in this ...

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Abstract

The invention discloses a ground cascade system external radio frequency electromagnetic environment test method which includes the steps that one subsystem of a ground cascade system is placed at the testing position of an opening field, other subsystems are arranged, a transmission cable electromagnetic coupling calculation model of the subsystem is constructed, coupling interference current between the subsystem and the other subsystems which are connected with the subsystem is obtained according to the mission cable electromagnetic coupling calculation model, a coupling interference current value curve is built, the coupling interference current is injected to a transmission cable due to the fact that a probe is injected, meanwhile an electromagnetic environment is produced by using a field intensity meter, a power amplifier, a directional coupler, a signal source, a power meter and a radiating antenna, antenna radiation is carried out on the position on the subsystem which is prone to producing an electromagnetic interference coupling by using an the electromagnetic environment, the subsystem is judged whether an electromagnetic sensitive phenomenon happens or not, provided the electromagnetic sensitive phenomenon happens, testing of the ground cascade system is proved to be unqualified, otherwise the testing is proved to be qualified. According to the ground cascade system external radio frequency electromagnetic environment test method, the whole ground cascade system can be tested in the radio frequency electromagnetic environment.

Description

technical field [0001] The invention belongs to the technical field of system-level electromagnetic compatibility tests, and more specifically relates to a test method for an external radio frequency electromagnetic environment of a ground cascade system. Background technique [0002] With the rapid development of information technology, the degree of system intelligence and informatization is getting higher and higher, and the mutual cascade coordination of systems has become a development trend. At the same time, the electromagnetic environment in which the system works has become increasingly complex. In order to ensure that the functions of the ground system can be effectively performed in complex electromagnetic environments, the radio frequency electromagnetic environment assessment changes stipulated in the national military standard GJB1389A-2005 "System Electromagnetic Compatibility Requirements" have been carried out. is particularly important. The standard clearl...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
Inventor 苏群星陈运涛邵命山王义朱伶黄寒砚张华韩磊陈玉兰王瑞
Owner ARMY ENG UNIV OF PLA
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