移动通信中功率控制技术的研究与FPGA仿真设计
移动通信中功率控制技术的研究与FPGA仿真设计(任务书,开题报告,论文17000字)
摘 要
当今时代,移动通信系统的应用已经普及并不断发展,它的实现离不开相关技术的支撑。在众多的技术中,功率控制技术作为移动通信系统的关键技术组成部分,在每一代移动通信系统的开发过程中都备受重视。
移动通信的功率控制技术主要是指移动通信中对功率大小进行调控、使功率值满足一定条件的技术。在保证用户间通信质量的前提下,功率控制技术的应用可以尽可能的降低信息传输功率,以此来达到减少电磁污染,降低功率损耗的目的。除此之外,功率控制技术的应用还可以有效的减少通信中存在的多址干扰问题与远近效应问题。
本文主要研究3G与4G移动通信系统中功率控制的相关理论知识。其中重点研究了3G通信系统反向链路中的闭环与开环功率控制实现的基本原理。在此基础上,以BPSK调制解调的WCDMA系统为基本框架,完成了开环功率控制系统与闭环功率控制系统模型的搭建。并在Quartus II 15.0的开发环境下,利用Veirlog HDL语言对功率控制系统模型中的各个模块进行设计,完成仿真。
关键词:功率控制;通信系统;远近效应;系统仿真
Abstract
Nowadays, the application of mobile communication system has been popularized and developed, and its implementation is inseparable from the support of relevant technology. In many technologies, power control technology is the key technology component of mobile communication system, and it is highly valued in the development of every generation of mobile communication system.
[资料来源:http://Doc163.com]
Power control technology, as its name implies, is the technology that controls power in mobile communication. On the premise of guarantee the quality of communication between the users, the application of the power control technology can reduce information transmission power as far as possible, in order to achieve reduce the electromagnetic pollution, the purpose of reducing power loss. In addition, the application of power control technology can effectively reduce the problem of multiple access interference and remote effect in communication.
This paper mainly studies the basic knowledge and methods of power control in 3G and 4G mobile communication systems. In this paper, the basic principle of open loop and closed-loop power control in the reverse link of 3G communication system is studied emphatically. On the basis of this, BPSK modulation and demodulation system is the basic frame, which completes the construction of the open-loop power control system and the closed-loop power control system model. In the development environment of Quartus II 15.0, the various modules in the power control system model are designed and simulated using Veirlog HDL language.
Key Words: Power control; Communication system; Distant effect; System simulation
目录
第1章绪论 1
1.1 研究背景及功率控制技术简介 1
1.2 研究的目的及意义 2
1.3 主要研究内容 2
第2章移动通信中功率控制技术的研究 4
2.1 移动通信中功率控制准则及影响因素 4
2.1.1 移动通信中功率控制准则 4
2.1.2 移动通信中影响功率控制的因素 6
2.2 移动通信中功率控制的常见方法 7
2.2.1 闭环功率控制技术与开环功率控制技术 7
2.2.2 反向链路功率控制技术与前向链路功率控制技术 8
2.2.3 分布式功率控制技术与集中式功率控制技术 9
2.3 第三代移动通信系统功率控制技术 9
2.3.1 CDMA2000系统功率控制 9
2.3.2 WCDMA系统功率控制 11
2.3.3 TD-SCDMA系统功率控制 12 [资料来源:http://Doc163.com]
2.4 LTE系统功率控制技术 13
第3章 WCDMA功率控制系统的设计 15
3.1 系统总体设计 15
3.2 BPSK调制与解调模块设计 16
3.2.1 正弦信号发生器 16
3.2.2 BPSK调制模块 18
3.2.3 BPSK解调模块 19
3.3 反向开环功率控制模块设计 22
3.4 反向闭环功率控制模块设计 25
第4章总结 29
参考文献 30
致谢 31 [资料来源:http://www.doc163.com]