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Walker constellation-oriented constellation topological configuration characterization method, system and application

A constellation and topology technology, applied in the field of constellation topology configuration characterization, can solve problems such as difficulty in generalizing, inability to describe the topology of constellation inter-satellite networks, complex and changeable topology, etc.

Active Publication Date: 2020-11-17
XIDIAN UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) The existing T / P / F-based Walker constellation can only describe the coverage capability, but cannot describe the constellation's inter-satellite network topology
[0007] (2) The complexity of the current technology to represent the topology of the Walker constellation is high, which is not conducive to the rapid solution of the routing algorithm
[0010] (2) The number of satellite nodes in the Walker constellation is huge, and there are many options for off-orbit links that meet the constraints of link building, resulting in complex and changeable topology structures that are difficult to generalize

Method used

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  • Walker constellation-oriented constellation topological configuration characterization method, system and application
  • Walker constellation-oriented constellation topological configuration characterization method, system and application
  • Walker constellation-oriented constellation topological configuration characterization method, system and application

Examples

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Embodiment 1

[0112] Example 1, 2D-Torus constellation topology characterization based on 60 / 6 / 1 / 0 Walker constellation

[0113] The example of the present invention starts from a 60 / 6 / 1 Walker constellation, constructs an inter-satellite network topology with a distortion coefficient U=0, and realizes the characterization of the 2D-Torus constellation topology of the Walker constellation.

[0114] Step 1, initialize the network parameters of the Walker constellation:

[0115] Such as image 3 As shown, the initialized Walker constellation parameters: the height is h=2500km, the orbital inclination is κ=53°, the total number of satellites is T=60, the number of orbits is P=6, the phase factor is F=1, the number of satellites per orbit Number all satellites in the network, the specific format is Sij,i=1,2,…,6, j=01,02,…,10, where Sij represents the jth satellite on the i-th orbit, assuming that West to east is the direction in which the orbit number i increases, and the satellite movement...

Embodiment 2

[0138] Embodiment 2, based on the Hamilton topological configuration characterization of the Walker constellation of 60 / 6 / 1 / 1

[0139] The example of the present invention starts from a 60 / 6 / 1 Walker constellation, constructs an inter-satellite network topology structure with a distortion coefficient U=1, and realizes the characterization of the Hamilton topology configuration of the Walker constellation. The parameters and link building constraints of the Walker constellation in this embodiment are the same as in Embodiment 1, but the input distortion coefficient U=1, and the topology configuration of the Walker constellation formed by it is different from Embodiment 1.

[0140] Step 1, initialize the network parameters of the Walker constellation:

[0141] The specific implementation of this step is the same as step 1 of Embodiment 1.

[0142] Step 2: Calculate the value set υ of the distortion coefficient according to the Walker constellation parameters and the link buildi...

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Abstract

The invention belongs to the technical field of satellite network design, and discloses a Walker constellation-oriented constellation topological configuration characterization method and system and application. According to the implementation scheme, T / P / F parameters, orbit height and orbit inclination angle of Walker are initialized, and all satellites are numbered according to positions; calculating a value set of a distortion coefficient U of the constellation according to Walker constellation parameters and link establishment constraints of an inter-satellite link; selecting a distortioncoefficient U from the value set, and designing an adjacent matrix corresponding to Walker constellation topological configuration. T / P / F / U is used for representing a constellation topological structure formed by a Walker constellation of T / P / F according to the distortion coefficient U. The invention provides a concept of a Walker constellation distortion coefficient, so as to distinguish different inter-satellite network topologies formed by Walker constellations with parameters of T / P / F, describe the space segment information bearing capacity of the Walker constellation, and help to design aWalker constellation with comprehensively optimal coverage and communication capacity.

Description

technical field [0001] The invention belongs to the technical field of satellite network design, and in particular relates to a walker constellation-oriented constellation topology representation method, system and application. Background technique [0002] At present, the Walker constellation is a kind of uniform and symmetrical circular orbit constellation, usually including two types of δ constellation and σ constellation. The network parameter of the δ (Delta) constellation proposed by J.G Walker is T / P / F, where T is the total number of satellites in the constellation, and each satellite has a circular orbit with the same orbital semi-major axis a, and the orbital inclination is κ; P is the orbital plane The number of P orbital planes is evenly distributed on the reference plane according to the ascending node, and S satellites are evenly distributed on each orbital plane, and the relationship T=PS is satisfied; F is the phase parameter of the constellation, which descri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04W84/06
CPCH04L41/12H04W84/06
Inventor 盛敏王占伟周笛李建东白卫岗刘俊宇毕媛媛吴家鑫
Owner XIDIAN UNIV
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