| CDMA卫星通信系统功率控制研究 |
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| 引用本文： | 卞瑜,黄国策. CDMA卫星通信系统功率控制研究[J]. 通信技术, 2008, 41(2): 123-125 |
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| 作者姓名： | 卞瑜 黄国策 |
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| 作者单位： | 空军工程大学,电讯工程学院,陕西,西安,710077 |
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| 摘 要： | 文章从卫星通信系统的功率控制原理入手,提出了一种适合CDMA卫星通信系统的功率控制方法;给出了精准的功率控制时的系统容量,通过推导给出的中断概率公式和例举的CDMA卫星通信系统实际数据,将功率控制误差对于系统容量的影响进行了仿真.仿真结果表明,当标准方差不断增大,系统的中断概率增大,系统容量随之显著减小;而采用精准的功率控制技术,可以有效改善系统性能.
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| 关 键 词： | 卫星通信 CDMA 反馈环功率控制 中断概率 容量 CDMA 卫星通信 系统功率 控制研究 Communication System Satellite Power Control 性能 改善 功率控制技术 标准方差 仿真结果 影响 控制误差 实际数据 公式 中断概率 系统容量 控制方法 入手 |
| 文章编号： | 1002-0802（2008）02-0123-03 |
| 收稿时间： | 2007-10-15 |
| 修稿时间： | 2007-10-15 |
Study on Power Control of CDMA Satellite Communication System |
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| BIAN Yu,HUANG Guo-ce. Study on Power Control of CDMA Satellite Communication System[J]. Communications Technology, 2008, 41(2): 123-125 |
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| Authors: | BIAN Yu HUANG Guo-ce |
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| Affiliation: | BIAN Yu,HUANG Guo-ce(Telecommunication Engineering Institute,Air Force Engineering University,Xi'an Shaanxi 710077,China) |
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| Abstract: | Starting with the principle of power control in satellite communication system,power control method of CDMA satellite communication system is proposed; system capacity of accurate power control is derived. Via the outage probability formula derived and practical data of CDMA satellite communication system, the influence of power control error on system capacity is simulated. The simulation indicates that when the square error increases, the outage probability of the system rises, while the system capacity decreases apparently; however, the system performance can be improved effectively when accurate power control technology is adopted. |
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| Keywords: | satellite communication CDMA loop-back power control outage probability capacity |
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