| 基于新体制的导航信号增强仿真平台设计 |
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| 引用本文： | 谭萍,刘美容,王玲,胡强. 基于新体制的导航信号增强仿真平台设计[J]. 电子测量技术, 2017, 40(2): 82-86. DOI: 10.3969/j.issn.1002-7300.2017.02.019 |
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| 作者姓名： | 谭萍 刘美容 王玲 胡强 |
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| 作者单位： | 湖南师范大学 物理与信息科学学院 长沙 410081 |
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| 摘 要： | 针对现有的卫星导航系统在某些特殊环境中存在定位精度不理想的问题,在一种新信号体制的基础上,研究了导航信号增强平台设计和仿真的软件实现方法.运用CDMA和FDMA相结合的方法,采用Simulink构建了该仿真平台的体系架构,并在此平台上完成了发射端和接收端的基带模拟仿真设计,详细介绍了该仿真平台主要模块的功能,并给出了实现方法.仿真设计结果在理论上验证了该方法的可行性,并且BPSK调制实现了较好的载波抑制,隐蔽性好,抗干扰能力强,满足了特定环境的定位需求,具有良好的应用前景.
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| 关 键 词： | 导航信号增强 新信号体制 扩频通信 Simulink BPSK |
Simulation design of navigation signal enhancement platform based on the new system |
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| Tan Ping,Liu Meirong,Wang Ling and Hu Qiang. Simulation design of navigation signal enhancement platform based on the new system[J]. Electronic Measurement Technology, 2017, 40(2): 82-86. DOI: 10.3969/j.issn.1002-7300.2017.02.019 |
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| Authors: | Tan Ping Liu Meirong Wang Ling Hu Qiang |
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| Affiliation: | College of Physics and Information Science,Hunan Normal University, Changsha 410081, China,College of Physics and Information Science,Hunan Normal University, Changsha 410081, China,College of Physics and Information Science,Hunan Normal University, Changsha 410081, China and College of Physics and Information Science,Hunan Normal University, Changsha 410081, China |
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| Abstract: | In view of the existing satellite navigation system,the positioning accuracy is not ideal in some special environment.On the basis of a new signal format,a software-based implementation approach for navigation enhancement signal simulation and validation platform is proposed in this paper.Using the combination of CDMA and FDMA,the architecture of the simulation platform is constructed based on Simulink.The baseband analog simulation design of transmitter and receiver is completed on this platform.The functions of main models were described in detailedly,and the realization method is given.The results verified the feasibility of the method,moreover,the BPSK modulation makes carrier supperession with good concealment and strong anti-jamming ability.The method meets the location needs of the special environment and has a good application prospects. |
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| Keywords: | navigation signal enhancement the new signal system spread spectrum communication simulink BPSK |
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