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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

Inactive Publication Date: 2019-04-02
SPACETY CO LTD (CHANGSHA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the inter-satellite link in this method does not have multi-satellite 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

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Embodiment 1

[0053] This embodiment discloses an inter-satellite communication system based on formation satellites, including an omnidirectional inter-satellite communication antenna array, a radio frequency channel, an inter-satellite link management unit and an inter-satellite baseband. The antennas adopt a 180° reverse layout, and each antenna has a 180° field of view. Two antenna patterns pointing oppositely form an antenna array pattern covering omnidirectional coverage. An omnidirectional inter-satellite communication antenna array is formed by intersecting the sky-to-sky antenna and the ground-to-ground antenna. The second pair of sky antennas and the first pair of ground antennas cross to form another backup omnidirectional inter-satellite communication antenna array. The redundant design enhances the reliability of the system. The inter-satellite link management unit controls two inter-satellite basebands to send and receive data of a group of inter-satellite radio frequency ch...

Embodiment 2

[0077] This embodiment discloses an inter-satellite communication method based on formation satellites, wherein the antennas in the communication antenna array adopt a reverse layout, and two antenna patterns pointing oppositely form an antenna array pattern covering omnidirectional coverage. The inter-satellite link management unit controls at least two inter-satellite basebands to send and receive data of a group of inter-satellite radio frequency channels. search. Through the queue-type multi-routing communication technology, the inter-satellite information of all satellites in the cluster is directly or indirectly exchanged, and the forwarding delay dynamic optimization technology is adopted. The processor determines the sending time according to the priority of the current data, and the important data forwarding time The delay is minimized, and the multi-channel information optimization technology is adopted, and the processor screens the multi-channel output data accordi...

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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 dedicated to omnidirectional signal transmission and reception, an inter-satellite link terminal dedicated to multi-channel search / capture / tracking, a processor dedicated to inter-satellite data transmission and reception and screening, radiofrequency channels, an inter-satellite link management unit and inter-satellite basebands, wherein an inter-satellite link formed by the inter-satellite basebands, the radio frequency channels and inter-satellite antennas implements heterogeneous synchronous transmission and reception of inter-satellite data, the inter-satellite link of each satellite can simultaneously capture, track and selecttwo channels of heterogeneous signals of other satellites, the rate can be independently adjusted according to whether the current inter-satellite distance and the inter-satellite communication are normal or not, and the configuration and control of the operating mode of the inter-satellite link can be managed synchronously by the inter-satellite link management unit in a unified manner.

Description

technical field [0001] The 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-occupancy single-satellite measurement and control is that each ground measurement and control station only serves one satellite at the same time, and multiple satellites realize data transmission between multiple measurement and control stations around the world in time-sharing. [0003] With the development of satellite network...

Claims

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Application Information

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IPC IPC(8): H04B7/185H04L1/00
CPCH04B7/18521H04L1/0059Y02D30/70
Inventor 任维佳杨峰杜志贵陈险峰
Owner SPACETY CO LTD (CHANGSHA)
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