Optimization method for conducted interference fault correcting by using conduction test standard-exceeding strategy

A technology of conducted interference and conducted testing, which is applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc. It can solve the problems of time-consuming, inability to determine the priority relationship of the rectification order of airborne equipment, repetition and cost increase, etc., to simplify the analysis. Effect

Active Publication Date: 2012-10-24
BEIHANG UNIV
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AI Technical Summary

Problems solved by technology

[0005] In many cases, multiple airborne equipment on the aircraft have electromagnetic compatibility conduction interference failures at the same time, which cannot meet the requirements of GJB151A-1997 on conducted emission and conducted sensitivity tests
However, there is currently no reasonable and feasible repair method for EMC

Method used

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  • Optimization method for conducted interference fault correcting by using conduction test standard-exceeding strategy
  • Optimization method for conducted interference fault correcting by using conduction test standard-exceeding strategy
  • Optimization method for conducted interference fault correcting by using conduction test standard-exceeding strategy

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Embodiment

[0103] It is assumed that the three airborne equipment will generate conduction interference to the electromagnetic compatibility of the whole machine. The test curves of the three airborne equipment are obtained in the CE102 and CS114 electromagnetic compatibility tests of GJB151A and GJB152A, and quantification and data processing are carried out for the exceeding standard. Get the conduction emission index weight and conduction sensitivity index weight. At the same time, according to the national military standard GJB 72A-2002 "Electromagnetic Interference and Electromagnetic Compatibility Terminology" Section 2.1.56, the provisions of the key categories of sub-systems and equipment, the weight of the electromagnetic compatibility classification index is obtained. Combining the conduction emission index weight, conduction sensitivity index weight, and electromagnetic compatibility classification index weight, the weight expectation of airborne equipment EMC conducted interfe...

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Abstract

The invention discloses an optimization method for conducted interference fault correcting by using a conduction test standard-exceeding strategy. A conducted emission curve and a conducted susceptibility curve are used for being compared with national military standard requirements, and a standard-exceeding area is obtained; area integral is adopted for quantizing the standard-exceeding area to obtain conducted emission index weight and conducted susceptibility index weight; and finally airborne device electromagnetic compatibility classification weight, the conducted emission index weight and the conducted susceptibility index weight are combined to obtain airborne device electromagnetic compatibility classification weight expectation. The optimization method combines airborne device electromagnetic compatibility conducted interference fault and electromagnetic compatibility of a whole plane by means of index quantization and weight distribution, gives overall consideration to factors such as all airborne device electromagnetic compatibility conducted emission, conducted susceptibility and electromagnetic compatibility classification, conducts index quantization and corresponding weight distribution, obtains affecting degree of airborne device conducted interference fault on the electromagnetic compatibility of the whole plane, determines priority of an airborne device electromagnetic compatibility conducted interference fault correcting sequence, and provides proof for determining a sequence of electromagnetic compatibility rectification.

Description

technical field [0001] The invention relates to an aircraft electromagnetic compatibility rectification and optimization method, in particular to an optimization method for aircraft conduction interference fault repair in an electromagnetic compatibility conduction interference environment where multiple airborne equipment conducts conduction. Background technique [0002] With the development of science and technology such as electronics, electricity, computers, control theory and control engineering, there are more and more types, quantities and working methods of aircraft electronic equipment, the frequency coverage is continuously expanding, the transmission power is increasing, and the receiving sensitivity is increasing. The higher the value, the greater the influence of electromagnetic interference on the aircraft's airborne equipment and systems. Electromagnetic interference not only affects the normal operation of the system, but may also cause flight accidents. ...

Claims

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Application Information

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IPC IPC(8): G01R31/00
Inventor 贾云峰苏东林马超魏嘉利
Owner BEIHANG UNIV
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