An electronic system electromagnetic environment effect test method based on the reverberation chamber platform

Abstract

The invention discloses a reverberation room platform based method for testing electromagnetic environment effects of an electronic system. The method is applicable to threshold testing of the electromagnetic environment effects of the electronic system on the basis of a reverberation room platform. The method includes the steps: 1, setting up a test platform; 2, keeping a reside position of a stirrer unchanged, setting a signal source transmitting frequency, increasing amplification factor of a power amplifier until electromagnetic environment effects occur in the electronic system, and recording the current forward input power; 3, changing the reside position of the stirrer, and repeating the step 2; 4, repeating the step 3 to obtain forward input powers corresponding to a plurality of reside positions of the stirrer; 5, taking the minimal forward input power obtained at the step 4 as the input power of a transmitting antenna, enabling the stirrer to rotate by one circle step by step to obtain corresponding electric field strength at each reside position, and taking the maximum value of the electric field strength as the threshold of the electromagnetic environment effects of the electronic system under the signal source transmitting frequency. The reverberation room platform based method has the advantages of procedure simplicity, easiness in implementation and high repeatability of test results.

Description

technical field [0001] The invention relates to an electronic system electromagnetic environment effect test method based on a reverberation chamber platform, and is especially suitable for the electronic system electromagnetic environment effect threshold test method based on a reverberation chamber platform. Background technique [0002] With the rapid development of science and technology, microelectronics technology has been widely used in electronic systems, making the equipment more and more electronic and integrated, with more and more powerful functions, and at the same time, it is more and more susceptible to the influence of the electromagnetic environment. Electronic systems often work in complex electromagnetic environments, such as weapons and equipment, industrial control instrument rooms, transportation vehicles and other fields, as well as instrument cabins of large equipment, passenger cabins and spacecraft cabins, working cabins, and multiple-input multiple-...

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Problems solved by technology

But this is not in line with the actual situation, because the electromagnetic environmental effect threshold of the electronic system in the reverberation room environment should be the electric field strength in the reverberation room when the electronic system can cause the effect under the minimum forward input power. The above method is directly from Considering the problem from the perspective of electric field strength, the physical meaning is not clear, and there are obvious unreasonable points. It cannot be guaranteed that the test value is the real threshold value of the electromagnetic environment effect of the electronic system, which leads to the inability of the test results to accurately guide the electronic system in the actual electromagnetic environment. safe to use

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