Method for eliminating influence on spatial target radiation characteristic ground simulation measurement caused by stray radiations

Abstract

The present invention relates to a method for eliminating influence on spatial target radiation characteristic ground simulation measurement caused by stray radiations and belongs to the target radiation characteristic measurement field. According to the method of the invention, the calculation model of test environment radiation characteristics is built; components are added into or removed from the model; the reflectivity of a designated surface is set; influence on a target component caused by stray radiations is separated; and therefore, simulation measurement errors can be decreased. The correctness of the calculation model and calculation conditions can be verified through comparing a test result and a calculation result, and therefore, the credibility of the calculation result can be ensured.

Description

technical field [0001] The invention belongs to the field of target radiation characteristic measurement, and in particular relates to a method for eliminating the influence of stray radiation on the ground simulation measurement of the space target radiation characteristic. Background technique [0002] In order to study the infrared radiation characteristics of the target in the space environment on the ground, it is generally necessary to establish a space environment simulator to simulate the vacuum, low temperature and thermal radiation environment of the space, and then place the measured target in the space environment simulator, and use infrared radiation measurement device to measure. When the thermal radiation environment simulated by the space environment simulator is consistent with the thermal radiation environment of the target in the real space environment, the radiation characteristics of the target in the real space can be equivalent to the ground test resul...

AI Technical Summary

Problems solved by technology

[0003] Due to the following reasons, the infrared radiation characteristics of the target measured in the space environment simulator are difficult to be equivalent to the radiation characteristics of the target in the real space environment

[0004] Reason 1: In addition to irradiating the measured target, the solar radiation simulator will also irradiate other surfaces in the container, causing reflections and forming stray radiation, which affects the measurement results and is different from the target in the real space

[0005] Reason 2: The radiation and reflected light produced by the measurement equipment and auxiliary measurement devices in the space environment simulator have an impact on the radiation characteristics of the target

[0006] Reason 3: From the infrared radiation measuring equipment, it is impossible to distinguish whether the target radiation is stray radiation or the required radiation

[0007] There is currently no way to eliminate the influence of stray radiation on the test, and the influence of stray radiation on the test cannot be ignored

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