面向天地一体化信息网络的卫星链路仿真研究

doi:10.11959/j.issn.1000-436x.2018071

Abstract

Abstract:

Aiming at the large scale and diverse technologies of the space-ground integration information network,it was necessary to rely on realistic satellite network scene to verify the various schemes.A method of satellite link emulation in cloud computing environment was proposed.The critical factors that affect the characteristics of satellite link were analyzed,OpenStack and STK were integrated to build an emulation platform for space-ground integration information network.Through the link modeling and calculation,the intermittence,delay and bit error rate of satellite link based on flow table rules and queue management rules can be toggled dynamically in real time.In order to improve the throughput of satellite link,satellite nodes have dynamic routing learning ability.Satellite links can be flexibly constructed and reconstructed.The experimental results show that the method can accurately emulate the satellite link,effectively guarantee the fidelity and periodicity of satellite link emulation,and facilitate the scientific research of satellite network scene.

Key words: cloud computing, space-ground integration, fusion emulation, satellite link

CLC Number:

TP393

Yuan LIU,Hao ZHANG,Haiyang YE,Jianfeng LI,Xiaofeng WANG,Guizhu ZHANG. Research on satellite link emulation for space-ground integration information network[J]. Journal on Communications, 2018, 39(4): 56-67.

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References 15

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参数	GEO卫星	IGSO卫星	LEO卫星
半长轴/km	42 164.1	42 164.1	7 792.14
偏心率	0	0	0
轨道倾角/°	0	55	52
近地点幅角/°	0	0	0
升交点与零分点的角度/°	58.75E,80E,110.5E,140E,160E	118E	0,45,90,135,180,225,270,315
平近点角/°	0	0,120,240	0,60,120,180,240,300
			7.5,67.5,127.5,187.5,247.5,307.5
			15,75,135,195,255,315
			22.5,82.5,142.5,202.5,262.5,322.5
			30,90,150,210,270,330
			37.5,97.5,157.5,217.5,277.5,337.5
			45,105,165,225,285,345
			52.5,112.5,172.5,232.5,292.5,352.5

频率/GHz	有效全向功率/dBW	数据传输速率/(Mbit·s^?1)	调制器
14.5	17(星地),38(星间)	10	BPSK

频率/GHz	品质参数	解调器
14.5	20	BPSK

Research on satellite link emulation for space-ground integration information network

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