| Costas环在无线扩频定位系统中的应用技术研究 |
| |
| 引用本文： | 宋建材,赵小明,杨兴文,赵素文,吴俊杰,张鹏. Costas环在无线扩频定位系统中的应用技术研究[J]. 中国惯性技术学报, 2006, 14(2): 56-59,68 |
| |
| 作者姓名： | 宋建材 赵小明 杨兴文 赵素文 吴俊杰 张鹏 |
| |
| 作者单位： | 天津航海仪器研究所,天津,300130 |
| |
| 基金项目： | 国防科技应用基础研究基金 |
| |
| 摘 要： | 分析了扩频定位系统中载波恢复和数据解调数学模型，设计了环路中应用的Butterworth低通滤波器和产生正交两路信号的Hilbert变换滤波器，在Simulink中建立了Costas环仿真模型。结果表明：该Costas环能够准确地实现扩频定位系统的载波恢复和发送端数据解调输出，理论仿真和实际工程实验基本一致。
|
| 关 键 词： | 科斯特斯环 载波恢复 扩频 无线电定位 |
| 文章编号： | 1005-6734（2006）02-0056-04 |
| 收稿时间： | 2006-02-21 |
| 修稿时间： | 2006-02-21 |
Application of Costas loop in wireless spread spectrum positioning system |
| |
| SONG Jian-cai,ZHAO Xiao-ming,YANG Xing-wen,ZHAO Su-Wen,WU Jun-Jie,ZHANG Peng. Application of Costas loop in wireless spread spectrum positioning system[J]. Journal of Chinese Inertial Technology, 2006, 14(2): 56-59,68 |
| |
| Authors: | SONG Jian-cai ZHAO Xiao-ming YANG Xing-wen ZHAO Su-Wen WU Jun-Jie ZHANG Peng |
| |
| Affiliation: | Tianj in Navigation Instrument Research Institute, TianJin 300130, China |
| |
| Abstract: | The mathematical models of Costas Loop for carrier recovery and data demodulation are analyzed. Then the Butterworth low-pass filter and Hilbert transform filter for generating two channel quadratic signal are designed, and a Costas simulation model in Simulink is developed. The simulation results show that the carder recovery and data demodulation can be accurately realized, and are consisted with practical engineering experiments. |
| |
| Keywords: | Costas loop carder recovery spread spectrum wireless position |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
