A Calculation Method of Satellite Block Blocking Time to Earth Data Transmission Antenna
A technology of an earth-to-earth data transmission antenna and a calculation method, which is applied to the calculation of the time of a satellite celestial body obscuring the earth-to-earth data transmission antenna, and the calculation of the time of a satellite celestial body obscuring the earth-to-earth data transmission antenna. Check, low compatibility, etc., to achieve the effect of computing efficiency and stability, strong compatibility, and high computing efficiency
Active Publication Date: 2018-04-20
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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Problems solved by technology
Using the traditional calculation method based on coordinate system conversion to judge whether the star is blocking the ground data transmission antenna is complicated and abstract, it is not easy to debug and check errors, and the compatibility is not high
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[0030] Below, combine Figure 1 to Figure 4 The present invention is further described.
[0031] A method for calculating the time when a satellite body blocks an antenna for data transmission to the ground comprises the following steps:
[0032] (1) According to the satellite structure design, analyze the geometric relationship between the satellite body and the ground data transmission antenna beam when occlusion occurs. The satellite ground data transmission antenna is installed on one side of the star body. When the satellite swings to the other side, the satellite The stars will enter the field of view of the ground-to-ground digital transmission antenna, which limits the rotation range of the ground-to-ground digital transmission antenna in the plane perpendicular to the satellite orbital plane with the satellite's flight direction as the axis. Taking this embodiment as an example, the transmittable rotation range is changed from 65° to -65° to 65° to -35°. The positive...
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The invention discloses a calculation method of satellite body shielding ground data transmission antenna time. Aiming at the problem of satellite body shielding ground data transmission antenna time calculation in satellite mission planning, and considering the satellite attitude information, satellite position, and ground station position, the calculation method of satellite body shielding ground data transmission antenna time is designed. The method includes that the motion of the satellite body shielding ground data transmission antenna is abstracted into space geometry relation, a model is established for the geometry relation by means of a vector tool, and then the satellite attitude information, the satellite instantaneous fine track number, the satellite ground station time and the ground station position are inputted and are calculated by means of the data output by the model to obtain the satellite body shielding ground data transmission antenna time at the end. The method has the characteristics of high calculation efficiency, easy realization, easy expansion, and high compatibility.
Description
technical field [0001] The invention relates to a calculation method for the time when a satellite body blocks an antenna for ground-to-ground data transmission, and is particularly suitable for the problem of calculating the time when a satellite body blocks a data-to-ground data transmission antenna in the field of satellite mission planning. Background technique [0002] Satellite attitude adjustments such as side swing and pitch are required during the execution of tasks such as playback, actual transmission, and recording while recording. Due to the limitation of the installation position of the satellite-to-ground data transmission antenna, the satellite body will limit the range of the satellite-to-ground data transmission antenna pair in some cases. In order to ensure the smooth execution of satellite missions and the correct planning of satellite missions, it is necessary to accurately calculate the time when satellite-to-ground data transmission occurs. [0003] T...
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IPC IPC(8): G06F17/16
CPCG06F17/16
Inventor 彭会湘杜楚李峰刘让国
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP