| Costas环在无线扩频定位系统中的应用技术研究 |
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| 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. |
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| 作者姓名： | 宋建材 赵小明 杨兴文 赵素文 吴俊杰 张鹏 |
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| 作者单位： | 天津航海仪器研究所,天津,300130 |
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| 基金项目： | 国防科技应用基础研究基金 |
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| 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。
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| 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： | 02 21 2006 12:00AM |
| 修稿时间： | 2006-02-21 |
Application of Costas loop in wireless spread spectrum positioning system |
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| 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. |
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| Authors: | SONG Jian-cai ZHAO Xiao-ming YANG Xing-wen ZHAO Su-Wen WU Jun-Jie ZHANG Peng |
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| Institution: | Tianj in Navigation Instrument Research Institute, TianJin 300130, China |
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| 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. |
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| Keywords: | Costas loop carder recovery spread spectrum wireless position |
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