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Star simulator test platform and test calibration method

A test platform and star simulator technology, which is applied to instruments, measuring devices, surveying and navigation, etc., can solve the problems of high simulation accuracy, high cost, and high experimental environment requirements for single star angle and star magnitude, and achieve the goal of building The effect of simple method, small size and simple operation mode

Inactive Publication Date: 2014-02-19
ZHEJIANG UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

The corresponding equipment has high requirements on the simulation accuracy of the single star angle and magnitude, and also has high requirements on the experimental environment. If darkroom operation is required, the cost is also high

Method used

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  • Star simulator test platform and test calibration method
  • Star simulator test platform and test calibration method
  • Star simulator test platform and test calibration method

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Experimental program
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Embodiment Construction

[0040] Such as figure 2 Described, a kind of star emulator test platform comprises notebook display screen 1, the smooth platform 2 of adjustable height, slide rail 6 with slide block 5 and three-axis precision displacement platform 3;

[0041] The notebook display screen 1 is located on a height-adjustable smooth platform 2 and is perpendicular to the slide rail 6;

[0042] The three-axis precision displacement platform 3 is arranged on the slide block 5 and can move relative to the slide rail 6. A star sensor 4 is arranged above the three-axis precision displacement platform 3. The distance between the lens of the star sensor 4 and the notebook display screen 1 is L, and the lens is kept vertical to the notebook display screen 1 .

[0043] The functions of each part are as follows: by moving the slider 5 on the slide rail 6, the object distance can be adjusted more conveniently; the height of the notebook display screen 1 can be roughly adjusted through the smooth platform...

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Abstract

The invention discloses a star simulator test platform and a test calibration method. The test platform comprises a graphical display device, a smooth platform with the adjustable height, a sliding rail with a sliding block, and a three-axis precision displacement platform, wherein the graphical display device is positioned on the smooth platform with the adjustable height and is vertical to the sliding rail; the three-axis precision displacement platform is arranged on the sliding block and can slide relative to the sliding rail; a star sensor is arranged above the three-axis precision displacement platform. The test calibration method comprises the following steps: simulating a star map; erecting the star simulator test platform, and calibrating the levelness, the verticality and the center position of an imaging part of the graphical display device; imaging the simulated star map on the graphical display device; acquiring the simulated star map on the graphical display device, and verifying the star map through using a star identification algorithm. The test platform has the advantages of simplicity, convenience and effectiveness in equipment, small size, light weight, simple erection method and low cost and is a portable function detection type star simulator test platform.

Description

technical field [0001] The invention relates to the field of satellite attitude measurement, and relates to a simple and effective star sensor function detection type star simulator test platform and a test calibration method. Background technique [0002] The attitude control system is one of the most complex subsystems of the satellite. Its main task is to realize the pointing and azimuth control of the satellite in a specific space coordinate system. It is generally composed of a sensor for measuring the attitude vector, an attitude control computer and execution components. The currently widely used attitude measurement sensors mainly include: sun sensors, magnetometers, gyroscopes, earth sensors, star sensors, etc. [0003] The star sensor is currently known as the attitude measurement component with the highest measurement accuracy and the smallest drift. With the rapid development of satellites, intercontinental missiles, spacecraft and other aerospace industries, hi...

Claims

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Application Information

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IPC IPC(8): G01C25/00
CPCG01C25/00G01C21/025
Inventor 王萌萌蒙涛
Owner ZHEJIANG UNIV