Laboratory measurement method for optical properties of satellites

Abstract

The invention discloses a laboratory measurement method for the optical properties of satellites, comprising the following steps: step 1, simulating the attitude motion of a satellite and establishing a satellite attitude motion model; step 2, establishing a light source model projected to a satellite model based on the satellite attitude motion model, and simulating the illumination of the sun to the satellite; and step 3, establishing a detector model simulating the detection angle of a detector based on the satellite attitude motion model and the light source model, wherein the direction of the detector in the detector model faces the satellite model in the satellite attitude motion model. Through equivalent treatment of the process of space optical observation, optical observation of a satellite is simulated in the laboratory; through satellite attitude control turntable scheme design, turntable rotation shafts clamping a target model are designed to simulate satellite attitude control; an around-center rotating part controlling the rotation of the detector is designed to simulate the relative motion of the optical detector; and a three-axis turntable and a detector are designed in a combined manner to simulate omni-directional observation based on a semicircular detection slide rail.

Description

technical field [0001] The invention relates to a laboratory measurement method for satellite optical characteristics, which belongs to the technical field of space object monitoring, and is used for assisting in analyzing the optical characteristics of space objects such as satellites, and helping to carry out the feature extraction and identification of space objects. Background technique [0002] The laboratory simulation observation technology of the optical characteristics of space objects such as satellites is to simulate the space illumination conditions faced by space objects in the laboratory and the relative geometric relationship between the light source-target-detector, and realize the actual observation process (ground-based , space-based optical observations). Through laboratory simulation observation, the data of visible light scattering characteristics of the measured target can be directly obtained, and the influence of factors such as phase angle, target ge...

AI Technical Summary

Problems solved by technology

Since the angle mapping method is not used, the above two sets of laboratory measurement systems for actual satellites use a six-degree-of-freedom attitude simulation system, which not only has a complex control system but also has high equipment costs

Due to the limitation of load-bearing capacity, the space angles that can be simulated by the above two schemes are very limited

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