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Satellite system with precise orbit calibration function

A satellite system and precision orbit technology, applied in the field of satellite systems, can solve the problems of inaccurate satellite positions and inability to provide a space service platform, and achieve the effect of improving accuracy and reliability

Pending Publication Date: 2019-09-27
SHANGHAI ENG CENT FOR MICROSATELLITES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing satellites usually use GNSS to calibrate their orbital positions, but for non-GPS military signal authorized users, using this method, the satellite's position is not accurate enough to provide a space service platform for some major and sophisticated projects

Method used

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  • Satellite system with precise orbit calibration function
  • Satellite system with precise orbit calibration function
  • Satellite system with precise orbit calibration function

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Embodiment 1

[0050] A satellite system for precise orbit calibration, its overall structure is as follows: figure 1 As shown, the satellite system includes a satellite body 2 and a solar panel wing 1. The solar panel wing 1 adopts a double-wing expansion form, and each wing is composed of three substrates. When launching, the solar panel wings 1 are folded and pressed against the ±Y surface of the satellite body 2, and the satellite is deployed along the ±Y direction after orbiting. According to the configuration of the satellite, the patch area of ​​the battery and the external dimensions of the extraterrestrial instrument, the size of the satellite is determined as:

[0051] (1) Launch status

[0052] Body size 665mm×665mm×560mm;

[0053] The envelope size is 775mm×875mm×875mm.

[0054] (2) On-orbit flight status

[0055] Envelope size: 750mm×3275mm×865mm.

[0056] The satellite body 2 is "L" shaped, and the internal force is a plate structure. The -Z surface is the long-term illumi...

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Abstract

The invention relates to a satellite system with a precise orbit calibration function. The satellite system comprises a satellite body and solar panel wings; the satellite system further comprises a GPS positioning unit and a laser reflection unit; and the laser reflection unit comprises a laser reflector, a laser signal emitter and a laser signal receiver, wherein the laser reflector is fixedly arranged on the satellite body, and the laser signal emitter and the laser signal receiver are arranged on the ground. According to the satellite system with the precise orbit calibration function of the invention, a satellite location can be roughly located through the GPS positioning unit; and then high-precision positioning is carried out on the satellite location through the laser reflection unit; and therefore, the precision and reliability of satellite positioning are improved, and a high-precision spatial service platform can be provided for national important scientific engineering requirements.

Description

technical field [0001] The invention relates to the field of satellite technology, in particular to a satellite system for precision orbit calibration. Background technique [0002] An artificial earth satellite refers to a space vehicle that is launched to a high altitude by a carrier rocket and makes it orbit the earth along a certain orbit. Artificial satellites are used for scientific research and have become an indispensable tool in modern communication, weather forecasting, earth resource exploration and military reconnaissance. [0003] When an artificial satellite is orbiting, it can quickly exchange information with the ground, including the forwarding of ground information, and can also obtain a large amount of remote sensing information of the earth, but this is also largely based on the calibration of the satellite's orbital position. Existing satellites usually use GNSS to calibrate their orbital positions, but for non-GPS military signal authorized users, usin...

Claims

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Application Information

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IPC IPC(8): G01C25/00G01S19/47
CPCG01C25/00G01S19/47
Inventor 蒋虎邓雷王涛
Owner SHANGHAI ENG CENT FOR MICROSATELLITES