| 一种基于数字匹配滤波的高灵敏度GNSS信号位同步算法 |
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| 引用本文： | 何文涛,徐建华,叶甜春,殷明. 一种基于数字匹配滤波的高灵敏度GNSS信号位同步算法[J]. 微电子学与计算机, 2011, 28(3): 48-50 |
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| 作者姓名： | 何文涛 徐建华 叶甜春 殷明 |
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| 作者单位： | 1. 中国科学院,微电子研究所,北京,100029
2. 杭州中科微电子有限公司,浙江,杭州,310053 |
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| 基金项目： | "核高基"重大专项项目 |
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| 摘 要： | 提出的基于匹配滤波的位同步算法有效利用了这种信号结构,可以显著提高位同步的灵敏度.仿真结果表明,以NH(20)次码信号结构的信号为例,采用2s的位同步时间,在错误位同步概率为1e-3的情况下,位同步灵敏度可以达到12 dB-Hz.
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| 关 键 词： | GNSS 位同步 高灵敏度 匹配滤波 |
A High Sensitivity GNSS Signal Bit Synchronization Algorithm Based on Matched Filtering |
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| HE Wen-tao,XU Jian-hua,YE Tian-chun,YIN Ming. A High Sensitivity GNSS Signal Bit Synchronization Algorithm Based on Matched Filtering[J]. Microelectronics & Computer, 2011, 28(3): 48-50 |
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| Authors: | HE Wen-tao XU Jian-hua YE Tian-chun YIN Ming |
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| Affiliation: | HE Wen-tao1,XU Jian-hua2,YE Tian-chun1,YIN Ming2(1 Institute of Microelectronics of Chinese Academy of Sciences,Beijing 100029,China,2 Hangzhou Zhongke Microelectronics Co.,Ltd,Hangzhou 310053,China) |
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| Abstract: | A new bit synchronization algorithm based on matched filtering is presented applicable to this signal structure.It can significantly improve the sensitivity of bit synchronization.When spending 2s to synchronize the signal with NH(20) second code signal structure,simulation results show that the bit synchronization sensitivity can reach 12dB-Hz with false bit synchronization probability of 1e-3. |
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| Keywords: | GNSS |
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