| DS-CDMA卫星通信系统容量分析与仿真 |
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| 引用本文： | WANG Li-gong,韩志军,PAN Shen-fu. DS-CDMA卫星通信系统容量分析与仿真[J]. 无线电通信技术, 2008, 34(4) |
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| 作者姓名： | WANG Li-gong 韩志军 PAN Shen-fu |
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| 作者单位： | 总参通信部驻石家庄地区军事代表室,河北,石家庄,050081 |
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| 摘 要： | 分析了影响DS-CDMA卫星通信系统容量的主要因素,如带宽扩展因子、地球站发射功率、系统抗干扰能力、传输质量要求、系统功率控制性能等;建立了DS-CDMA卫星通信系统的仿真模型,导出了系统容量计算的闭环表达式,并对一个典型系统的容量进行了计算和仿真,验证了理论分析的正确性,给出了实际工程应用中的设计建议,对具有较大容量的卫星通信系统的设计有一定的借鉴意义。
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| 关 键 词： | DS-CDMA 系统容量 抗干扰 卫星通信 |
Analysis and Simulation of the Capacity of DS-CDMA Satellite Communication System |
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| WANG Li-gong,HAN Zhi-jun,PAN Shen-fu. Analysis and Simulation of the Capacity of DS-CDMA Satellite Communication System[J]. Radio Communications Technology, 2008, 34(4) |
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| Authors: | WANG Li-gong HAN Zhi-jun PAN Shen-fu |
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| Abstract: | The main factors that affect the capacity of DS-CDMA satellite communication system are analyzed in this paper,such as bandwidth expansion factor,transmitting power of earth station,the anti-interference capability of system,transmission quality requirement,power control performance of system,and so on.Then the simulation model of DS-CDMA satellite communication system is established and the closed loop expression for system capacity calculation is educed.Finally,the capacity of a typical system is calculated and simulated to validate the theoretic analysis above,and design suggestions in actual engineering application are given,which may be used as reference for the design of satellite communication system with large capacity. |
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| Keywords: | DS-CDMA system capacity anti-interference satellite communication |
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