Full-autonomous lunar surface navigation and data communication method based on spherical satellite

Abstract

The invention discloses a full-autonomous lunar surface navigation and data communication method based on a spherical satellite, and the method comprises the steps: selecting a lunar circular orbit asa navigation satellite operation orbit, effectively covering the lunar surface, and guaranteeing that any point of the lunar surface can receive an effective navigation satellite signal at any moment; under the condition that the initial state of the spherical satellite is known, an orbit prediction value within a long time can be obtained. Besides, inversion of kinetic model parameters is carried out through inter-satellite distance measurement, a high-precision kinetic model can be obtained, and high-precision forecasting of the constellation ephemeris is achieved so as to support long-termfull-autonomous operation of the constellation. Moreover, the spatial position of the lunar surface user is obtained by measuring and solving the distance between the lunar surface user and the plurality of spherical satellites observed by the lunar surface user, so that accurate target position and speed can be provided for lunar surface activities, efficient data communication service can be implemented, and navigation and positioning of any point of the lunar surface and data transmission between any two points of the lunar surface can be realized; and the task requirements of manned lunar-landing activities can be well met.

Description

technical field [0001] The invention relates to the technical field of lunar satellite navigation and communication, in particular to a method for fully autonomous lunar surface navigation and data communication based on spherical satellites. Background technique [0002] The moon is rich in mineral resources, many of which are rare elements on the earth, which are of great significance to economic activities on the earth and will make important contributions to the sustainable development of human society. The lunar debris is rich in rare gas elements, among which helium-3 is a fuel for controllable nuclear fusion, which has more advantages than deuterium and tritium. At the same time, the low-gravity environment of the moon also provides superior conditions for carrying out scientific experiments. When humans carry out activities on the lunar surface, they need the support of many infrastructure conditions. Among them, lunar surface navigation and data communication are o...

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Problems solved by technology

[0008] The present invention provides a fully autonomous lunar surface navigation and data communication method based on spherical satellites to solve the poor positioning accuracy existing in the existing lunar surface user navigation and positioning methods and the difficulty in realizing rapid communication between any two points on the lunar surface question

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