A Discrimination Method for the Visibility of the Moon-Based Exploration Platform to the Earth
A technology of detection platform and discrimination method, which is applied in the field of earth observation of lunar-based detection platform, can solve the problems of difficulty in meeting the needs of global-scale observation capabilities of global change scientific issues, long repeated observation cycles, etc., and achieve fast calculation speed and high accuracy degree, the effect of high judgment accuracy
Active Publication Date: 2022-02-11
XI AN JIAOTONG UNIV
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Problems solved by technology
However, the current remote sensing technology based on the satellite-machine-ground platform can only conduct short-term observations of scientific phenomena in limited areas on the earth, and the repeated observation period is long.
In terms of detailed and continuous observation of large-scale and dynamic problems on the earth, it is still difficult to meet the needs of global-scale observation capabilities for global change science issues
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[0046] In order to make the purpose and technical solution of the present invention clearer and easier to understand. The present invention will be further described in detail below in conjunction with the drawings and embodiments. The specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0047] refer to figure 1 , a method for discriminating the visibility of a lunar-based detection platform to the ground, comprising the following steps:
[0048] Step 1. Use the DE430 ephemeris file of the Jet Propulsion Laboratory of the United States to obtain the relative position coordinates between the earth and the moon, and perform the conversion between the lunar celestial coordinate system and the moon-centered moon-fixed coordinate system to obtain the center of the earth under the stars on the surface of the moon The latitude and longitude of the point and the angle between the common tangent of the earth and the ...
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The invention discloses a method for discriminating the visibility of the moon-based detection platform to the earth. Using the DE430 ephemeris file and the observation geometric model between the earth and the moon, the visibility of the moon surface to the earth's 18.6-year long period is calculated. According to the earth's Whether the entire disk surface is visible and whether it is permanently visible divides the lunar surface into 4 regions, and provides an accurate judgment method for the lunar surface points located in different regions with the method of function analysis. The present invention uses a mathematical analytical formula to judge the visibility of the moon-based detection platform to the entire disk of the earth, which has the advantages of simplicity, convenience, fast calculation speed, and the ability to determine the visibility of the analysis point to the entire disk of the earth with high accuracy , which can be used to provide technical support from the perspective of visibility for the siting of future moon-based Earth observation systems or lunar exploration missions.
Description
technical field [0001] The invention belongs to the technical field of earth observation of a moon-based detection platform, and in particular relates to a method for discriminating the visibility of the moon-based detection platform to the earth. Background technique [0002] At present, human beings are facing a series of unprecedented global environmental changes, which bring great challenges to human development. In recent years, people have increasingly recognized the need for comprehensive observation of the earth as a whole, and the need to improve large-scale earth observation ability to open up new earth observation platforms. However, the current remote sensing technology based on the satellite-machine-ground platform can only conduct short-term observations of scientific phenomena in limited areas on the earth, and the repeated observation period is long. In terms of detailed and continuous observation of large-scale and dynamic issues on the earth, it is still d...
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IPC IPC(8): G06F30/20
Inventor毕胜山张园杨佳楠吴江涛
OwnerXI AN JIAOTONG UNIV