OPNET卫星网络通信节点天线仿真与分析
毕业论文关键词 卫星通信系统 OPNET 无线链路 天线 仿真建模 空间网络
Title S imulation and A nalysis for an tenna of Satellitenetwork communication based on OPNETAbstract Abstract Abstract AbstractA s a n essential part of the satellite communication system ,a ntenna playsa very important role of the informat ion transmission between ground andspace .T his paper discusses on the modeling problem of the antenna form anddirectivity . T he design and development of satellite antenna model providesthe technical support for the space network simulation system . The main workof this paper is as follows :(1) Introduces t he main composition of satellite communication system ,the basic theory of satellite communication antenna and the modeling ideaand methods of OPENT Modeler network simulation tool ;(2) According to the characteristics of the satellite communicationlink , the paper design s a new satellite communication link based onOPNET , considering the judgment condition of link establishment and linkcommunication quality ;(3) I ntroduces the theory of antenna modeling based on OPNET , Indetail , from the two angles of the antenna pattern model and externalinterface . this paper carried out the satellite communication antennadesign work;(4) Set s up typical satellite communication scenarios using the OPNETnetwork simulation software , the geostationary satellite ( GEO ) andlow-earth orbit satellite (LEO ) are applied to realize the communicationprocess between the two ground nodes over a long distance. at the same time ,using the probe to c ollect the error rate and throughput of networkcommunication , and compare s and analyze s the system communication performance with or without the antenna tracking.F inally, the paper summarize s the full text . it point es out the shortagesexisting in the current work , as well as suggesting the further study andexploration in the future.
Key words satellite communication system OPNET Wireless link antennaSimulation and Modeling Space Network
目次
1绪论..1
1.1课题背景及意义..1
1.2国内外研究水平综述1
1.3论文研究思路与主要工作.2
2卫星通信概述及OPNET仿真建模基础..4
2.1卫星通信概述..4
2.2卫星通信天线..5
2.3OPNETModeler仿真建模基础..8
2.4本章小结..10
3基于OPNET的卫星通信链路建模..11
3.1卫星通信链路的特点11
3.2OPNET无线管道阶段.11
3.3卫星链路模型的设计13
3.4本章小结..16
4基于OPNET的天线建模17