| 基于SOPC实现扩频信号的捕获与跟踪 |
| |
| 引用本文： | 黄飞江,卢晓春,吴海涛,边玉敬.基于SOPC实现扩频信号的捕获与跟踪[J].通信技术,2008,41(12). |
| |
| 作者姓名： | 黄飞江 卢晓春 吴海涛 边玉敬 |
| |
| 作者单位： | 1. 中国科学院国家授时中心,陕西,临潼,710600;中国科学院研究生院,北京,100049;长沙学院,电子与通信工程系,湖南,长沙,410003
2. 中国科学院国家授时中心,陕西,临潼,710600 |
| |
| 基金项目： | 国家自然科学基金
，
中国科学院两部之光人才培养计划
，
湖南省教育厅科学研究基金
|
| |
| 摘 要： | 扩频信号的捕获与跟踪是扩频接收机进行定位解算的基础,提出了利用FPGA内的嵌入式软核Niosll在单片FPGA内实现扩频信号捕获与跟踪的设计方案.详细分析了该方案的匹配滤波器、相关器、载波跟踪环和码跟踪环设计和实现方法.给出了根据该设计对实时的GPS信号的捕获跟踪测试结果.结果表明,该设计能够实现对扩频信号的实时捕获与跟踪,相比利用FPGA+DSP方案实现扩频信号的捕获与跟踪,具有可重构性好,硬件开发难度低,接收机体积小等优点.
|
| 关 键 词： | 扩频接收机 嵌入式软核Niosll |
Acquisition and Tracking of Direct-Spread-Spectrum Signal Based on SOPC |
| |
| HUANG Fei-jiang,LU Xiao-chun,WU Hai-tao,BIAN Yu-Jing.Acquisition and Tracking of Direct-Spread-Spectrum Signal Based on SOPC[J].Communications Technology,2008,41(12). |
| |
| Authors: | HUANG Fei-jiang LU Xiao-chun WU Hai-tao BIAN Yu-Jing |
| |
| Institution: | HUANG Fei-jiang,LU Xiao-chun,WU Hai-tao,BIAN Yu-jing (National Time Service Center,Chinese Academy of Sciences Lintong Shaanxi 710600,China,Graduate University of Chinese Academy of Sciences,Beijing 100049,Department of Electronics , Communication Engineering,Changsha University,Changsha Hunan 410003,China) |
| |
| Abstract: | The acquisition and tracking of direct-spread-spectrum signal(DSSS) is the foundation for direct-spread-spectrum signal receiver positioning.The design model for realizing the acquisition and tracking of DSSS in single FPGA chip based on embedded software core NiosII in FPGA is described.The design and implementation of the matched-filter,correlator,code tracking loops and carrier tracking loops are described in detail.Based on this edsign model,the results for acquisition and tracking of the real-time GPS ... |
| |
| Keywords: | FPGA SOPC |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
