| The star simulator instrument is an important test equipment on the ground of star sensitivity instrument which is a stance test key component in planet control system. Whether star sensitivity instrument demarcate test precision high or not, will directly affect work precision work the planet on the orbit. to simulate the earth on the ground which can be seen in firmament, This paper advances a miniature collimating infrared star simulator design , solves the star sensor ground simulation test question.This paper introduces the compose, integer structure, star simulator, and based function of the star simulator instrument and shows a detailed exposition about optical system design liquid crystal light valve display and system accuracy. This paper presents a liquid crystal light valve based on the high-precision satellite image simulation methods. LCLV is the most important components of star simulator, through sub-stars such as simulation and design, use of high-quality liquid crystal light valve dynamic display the star map; via satellite from the angle between the satellites and the detection and analysis of test the accuracy of the satellite simulator the accuracy of satellite simulator for the study of the design basis.
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