| 一种改进的GPS时频同步捕获算法研究 |
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| 引用本文： | 唐昊,郭伟. 一种改进的GPS时频同步捕获算法研究[J]. 全球定位系统, 2009, 34(6): 43-47 |
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| 作者姓名： | 唐昊 郭伟 |
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| 作者单位： | 电子科技大学,通信抗干扰技术国家级重点实验室,四川,成都,611731 |
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| 摘 要： | 对GPS时频同步捕获算法进行了研究，分析了一维和二维捕获算法的特点，在已有算法基础上，提出了一种改进的一维时频同步捕获算法，与修改前的捕获算法相比，算法捕获门限的设定简单，且提高了捕获概率；与二维捕获算法相比，显著提高了信号捕获的速度。
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| 关 键 词： | 时频同步 伪码捕获 捕获算法 |
A Modified Acquisition Algorithm Research Based on Time-Frequency Synchronization on GPS |
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| TANG Hao,GUO Wei. A Modified Acquisition Algorithm Research Based on Time-Frequency Synchronization on GPS[J]. Gnss World of China, 2009, 34(6): 43-47 |
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| Authors: | TANG Hao GUO Wei |
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| Affiliation: | (UESTC, National key laboratory of science and technology on communications, Sichuan Chengdu , 611731) |
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| Abstract: | This paper analyzes the characters of 1-D and 2-D acquisition algorithm, A modified acquisition algorithm based on time--frequency synchronization on GPS is proposed. Compared with original algorithm, it can not only decrease the complexity of threshold setting, but also increase the acquisition rate. Compared with 2-D algorithm, it obviously increases the speed of acquisition. |
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| Keywords: | Time-frequency synchronization PRN code acquisition acquisition algorithm |
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