基于OPNET的卫星多波束天线仿真建模研究  

Research of Satellite Multi-beam Antenna Simulation Modeling Based on OPNET

作　　者：张晓东[1] 马东堂[1] 李树锋[1] 丁丁[1] 

机构地区：[1]国防科学技术大学电子科学与工程学院,湖南长沙410073

出　　处：《现代电子技术》2009年第3期46-49,53,共5页Modern Electronics Technique

基　　金：国防科技重点实验室基金资助项目(51435050105KG0102)

摘　　要：多波束天线技术是卫星移动通信系统中的关键技术之一。研究卫星多波束天线的几何模型,推导卫星多波束天线方位角和俯仰角的计算公式,分析卫星多波束天线的辐射特性;总结了利用OPNET生成卫星多波束天线模型的方法,并建模实现了OPNET多波束天线模型,通过构建网络仿真场景仿真分析了卫星多波束天线覆盖区内用户SNR的分布特性,仿真结果表明OPNET多波束天线模型较好地模拟卫星多波束天线的辐射特性。Multi- beam antenna is a key technology in the satellite mobile communication system. The geometry model of satellite multi - beam antenna is researched, the calculating formula of azimuth angle and pitching angle for satellite muhi - beam antenna is deduced, the radiation characteristic of satellite multi - beam antenna is analyzed, the creating methods of multi-beam antenna based on OPNET is summarized,and multi - beam antenna model is implemented. The SNR distributing characteristic of users in the covering region is simulated by setting network simulation scenario. Simulation results indicate that the proposed model is appropriate to the radiation characteristic of satellite multi - beam antenna.

关 键 词：多波束天线 仿真建模 卫星移动通信系统 OPNET 

分 类 号：TN828.5[电子电信—信息与通信工程]