Electromagnetic environment test method based on simulated data

Abstract

The invention relates to an electromagnetic condition test method based on simulation data, which builds an electromagnetic simulation numerical model according to a tested object and adopts a prior electromagnetic simulation software to calculate the electromagnetic field distribution at the surface of the object; finds an actual measurement point O and finds the actual electric field intensity E at the point and extracts the predicated data from the simulation data; processes power fitting to attain a fitting equation as E=aR<-b> to describe the change of the field intensity along with distance; adopts the b as the b of a derivation equation as E=aR<-b>, and induces the electric field intensity E of the actual measurement point and the distance between the O point and the V point into the equation to obtain a; induces the distance of the derived point into the equation as E=aR<-b>; and obtain the approximate value of the electric field intensity at the T point. The invention can obtain a predicted value nearly same as the actual test data in the open area of a complex structure, satisfy the test on the electromagnetic condition in actual engineering. The invention can improve test efficiency, protect testers and realize high test accuracy.

Description

technical field [0001] The invention belongs to the field of electromagnetic environment testing, and in particular relates to a method for deducing electromagnetic field strengths at other test points based on electromagnetic field simulation data and test data at one test point in an actual electromagnetic environment. It can be used to predict the intensity of radiated electromagnetic field on the deck surface of water surface ships and other open and flat areas. Background technique [0002] In order to ensure the normal operation of communication equipment and electromagnetic sensitive equipment on ships and other weapon platforms, and to ensure the safety of personnel, weapons and fuel on large weapon platforms, it is necessary to test and measure the electromagnetic environment in these areas in order to take measures to ensure that the electromagnetic field The strength does not exceed the specified limit value. At present, the main method adopted by the shipbuildin...

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Problems solved by technology

However, the inferred electric field strength cannot be used to replace the test results due to insufficient accuracy, and can only be referred to and used for the predicted electric field distribution law.

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