| 基于CORDIC算法的GPS载波跟踪环鉴相器的设计 |
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| 引用本文： | 姜华,毛志刚,谢憬.基于CORDIC算法的GPS载波跟踪环鉴相器的设计[J].信息技术,2008,32(1):52-54. |
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| 作者姓名： | 姜华 毛志刚 谢憬 |
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| 作者单位： | 上海交通大学微电子学院,上海,200240 |
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| 摘 要： | 提出了一种实现GPS载波跟踪环鉴相器的方法,该方法采用CORDIC算法来实现用于鉴相的arctan函数.同时,给出了这种基于CORDIC算法的硬件实现的结构和相应的仿真结果.这种算法结构简单,只需要采用加法和移位操作即可,非常易于硬件实现,并且其仿真结果可以达到GPS的要求.
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| 关 键 词： | CORDIC 鉴相器 arctan函数 硬件实现 CORDIC 算法 载波跟踪环 鉴相器 设计 algorithm based loop frequency tracking phase detector 位操作 加法 结构简单 仿真结果 硬件实现 函数 方法 |
| 文章编号： | 1009-2552（2008）01-0052-03 |
| 收稿时间： | 2007-08-24 |
| 修稿时间： | 2007年8月24日 |
A design of phase detector for GPS frequency tracking loop based on CORDIC algorithm |
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| JIANG Hua,MAO Zhi-gang,XIE Jing.A design of phase detector for GPS frequency tracking loop based on CORDIC algorithm[J].Information Technology,2008,32(1):52-54. |
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| Authors: | JIANG Hua MAO Zhi-gang XIE Jing |
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| Affiliation: | JIANG Hua,MAO Zhi-gang,XIE Jing (School of Microelectronics,Shanghai Jiaotong University,Shanghai 200240,China) |
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| Abstract: | A design of phase detector for GPS frequency tracking loop is presented based on CORDIC algorithm,which is used to implement the arctan function.Besides,the corresponding hardware architecture and emulating result are also presented.The design has a simple structure which only uses 'add' operation and 'shift' operation,and can be easily implemented,and the emulating result can meet the precision demand of GPS. |
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| Keywords: | CORDIC phase detector arctan function hardware implementation |
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