Inter-satellite communication system and method based on formation satellites

A communication system and inter-satellite technology, applied in the field of inter-satellite communication systems based on formation satellites, can solve the problem that inter-satellite links do not have multi-satellite access, queue-type multi-route communication, omnidirectional, full-time, dual to ensure timeliness and continuity, eliminate interference areas, and avoid interruption of information exchange

Active Publication Date: 2019-06-28
SPACETY CO LTD (CHANGSHA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inter-satellite link in this method does not have multi-star access, queue-type multi-route communication, nor does it have the technical characteristics of omnidirectional, full-time, and duplex

Method used

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  • Inter-satellite communication system and method based on formation satellites
  • Inter-satellite communication system and method based on formation satellites
  • Inter-satellite communication system and method based on formation satellites

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0063] Such as figure 2 As shown, this embodiment discloses an inter-satellite communication system based on formation satellites, which at least includes several satellites 15. Satellites 15 can communicate with each other and also with, for example, ground stations. Each satellite 15 is all configured with the inter-satellite communication system of the present invention, so that it communicates with each other by establishing an inter-satellite communication link.

[0064] Preferably, the inter-satellite communication system includes an inter-satellite communication antenna array for omnidirectional signal transmission and reception, a multi-channel search / acquisition / tracking inter-satellite link terminal, a processor for inter-satellite data transmission and reception and screening, a radio frequency channel, a satellite Inter-link management unit and inter-satellite baseband. Through the inter-satellite communication antenna array, the inter-satellite baseband and the...

Embodiment 2

[0072] This embodiment is a further improvement on Embodiment 1, and repeated content will not be repeated here.

[0073] preferred, such as image 3As shown, the inter-satellite communication antenna array includes at least a sky antenna 16, a ground antenna 17, a first reflector 18 and a second reflector 19. The shape of the first reflective disc 18 is defined by a disc shape, and the shape of the second reflective disc 19 is defined by a circular ring. The first reflection disc 18 is nested in the second reflection disc 19. The ground antenna 17 is installed on the first reflector 18 . At least two antennae 16 are arranged on the second reflector 19 in a circumferential manner. The ground antenna 17 is fixed on the first reflector 18 such that its axis is parallel to the axis of the first reflector 18 . Earth antennas are used to establish a communication link with the earth.

[0074] preferred, such as Figure 4 As shown, the antenna 16 at least includes a balun 16a,...

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Abstract

The invention relates to an inter-satellite communication system and method based on formation satellites. The system comprises a communication antenna array special for omni-directional signal transceiving, an inter-satellite link terminal special for multi-channel searching / capturing / tracking, a processor special for inter-satellite data transceiving and screening work, a radio frequency channel, an inter-satellite link management unit and an inter-satellite baseband. The inter-satellite link composed of the inter-satellite baseband, the radio frequency channel, and the inter-satellite antenna realizes heterologous synchronous receiving and transmitting of inter-satellite data. The inter-satellite link of each satellite simultaneously captures, tracks and selects two paths of different-source signals of the satellite, autonomously performs rate adjustment according to the current inter-satellite distance and whether inter-satellite communication is normal or not, and the working modeconfiguration and control of the inter-satellite link are uniformly and synchronously managed by the inter-satellite link management unit.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to an inter-satellite communication system and method based on formation satellites. Background technique [0002] At present, the satellite measurement and control mainly adopts the single-station single-satellite measurement and control method. That is, when each satellite passes over the ground measurement and control station, it directly establishes a satellite-ground measurement and control link with the ground measurement and control station according to the instructions of the on-board computer. The characteristic of the above-mentioned single master single-satellite TT&C is that each ground TT&C station serves only one satellite at the same time, and multiple satellites realize data transmission between multiple TT&C stations around the world in time-sharing. [0003] With the development of satellite networks, the miniaturization of satellites has become a tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185H04L1/00
CPCH04B7/18521H04L1/0059
Inventor 任维佳杨峰杜志贵陈险峰
Owner SPACETY CO LTD (CHANGSHA)
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