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Clustering-based low-earth-orbit satellite failure discovery method

A technology for low-orbit satellites and discovery methods, applied in transmission monitoring, radio transmission systems, electrical components, etc., can solve problems such as weak processing capabilities on satellites, achieve good transformation and application prospects, and improve the effect of flexibility

Inactive Publication Date: 2014-04-02
NANJING UNIV OF POSTS & TELECOMM
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the high-orbit satellite system, the number of satellites in the low-orbit satellite system is larger, and the on-board processing capabilities of the satellites are weaker

Method used

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  • Clustering-based low-earth-orbit satellite failure discovery method
  • Clustering-based low-earth-orbit satellite failure discovery method
  • Clustering-based low-earth-orbit satellite failure discovery method

Examples

Experimental program
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Embodiment Construction

[0071] Step 1. Obtain the latitude and longitude information of each low-orbit satellite LEO, and use the north-south axis as the boundary to divide the orbit of the low-orbit satellite Divided into two clusters located in the eastern and western hemispheres and clusters ( is the track number, =0,1,2,...n-1);

[0072] Step 2. Select clusters and cluster The low-orbit satellite LEO with the smallest absolute value of inner latitude is used as the cluster head, which is marked as and ;

[0073] Step 3. Each low-orbit satellite LEO ( is the orbit number of the satellite, for the number of satellites in orbit) to identify their own forward satellites and backward satellite ;

[0074] Step 4. Cluster head failure discovery: the high-orbit satellite GEO sends request data to the cluster heads within its coverage area, if the cluster head ( ) has no response to the three data requests, then the satellite failure information of the cluster head will ...

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Abstract

The invention discloses a clustering-based low-earth-orbit satellite failure discovery method. The clustering-based low-earth-orbit satellite failure discovery method comprises the following steps: by adopting a double-layer satellite network architecture of a geostationary-earth-orbit (GEO) satellite / a low-earth-orbit (LEO) satellite, by virtue of a clustering concept, and with an axis penetrating through the south and north poles as a boundary, dividing a circular LEO satellite orbit into two LEO satellite clusters in the east and west hemispheres; in each cluster, selecting the LEO satellite with the lowest latitude as a cluster head of the cluster for collecting failure information of the LEO satellites in the cluster, sending the collected failure information to the GEO satellite covering the LEO satellites, and uniformly mastering the failure information of the LEO satellites by the GEO satellite with strong on-board processing capability. By the clustering-based low-earth-orbit satellite failure discovery method, LEO satellite failure discovery breaks away from a traditional ground station measurement and control technology with strong geographical dependence, so that failure discovery flexibility of the LEO satellite is greatly improved.

Description

technical field [0001] The invention relates to a satellite fault discovery method applied to a low-orbit satellite system. The invention is based on the GEO-LEO double-layer satellite network, and uses the clustering idea to realize the low-orbit satellite fault discovery, so that the low-orbit satellite fault discovery can get rid of the geographical The traditional ground station measurement and control technology with strong dependence improves the flexibility of low-orbit satellite fault detection. It has good transformation and application prospects in the fields of aviation, aerospace, and military satellite architecture, adoption, and social economy. It belongs to satellite communication technology field. [0002] Background technique [0003] With the development of on-board processing technology and small satellite technology, interstellar links are used to connect satellites in different orbits together, and in accordance with the principle of maximum and effecti...

Claims

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Application Information

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IPC IPC(8): H04B17/02H04B7/155H04B17/40
Inventor 叶晓国林琳孙力娟肖甫周剑王汝传郭剑韩崇
Owner NANJING UNIV OF POSTS & TELECOMM
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