| Galileo脉冲伪卫星信号接收方法比较 |
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| 引用本文： | 周必磊,任艳阳,王超,罗伟雄,叶红军.Galileo脉冲伪卫星信号接收方法比较[J].北京理工大学学报,2010,30(10):1226-1230. |
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| 作者姓名： | 周必磊 任艳阳 王超 罗伟雄 叶红军 |
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| 作者单位： | 北京理工大学信息与电子学院;上海卫星工程研究所;中南大学物理科学与技术学院;河北省卫星导航技术与装备工程技术研究中心; |
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| 摘 要： | 研究一种Galileo伪卫星信号格式.针对脉冲伪卫星信号的接收,提出两种脉冲同步方法,即分段FFT方法和脉冲图案匹配法.分段FFT方法利用伪卫星脉冲与接收机本地伪码间的分段相关特性,使用分段FFT相关算法获取脉冲时序信息;脉冲图案匹配法则利用伪卫星脉冲图案的伪随机特性,通过将接收脉冲图案与本地图案进行匹配操作实现脉冲同步.仿真分析显示,对于Galileo E1信号,脉冲图案匹配法的虚警特性最佳;而分段FFT方法平均捕获时间最短.两种方法都可极大地提高伪卫星接收机的同步性能.
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| 关 键 词： | 脉冲伪卫星 脉冲时间同步 脉冲图案匹配 |
| 收稿时间： | 2009/7/14 0:00:00 |
Comparison Study on Galileo Pulsed Pseudolite Signal Receiving Approaches |
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| ZHOU Bi-lei,REN Yan-yang,WANG Chao,LUO Wei-xiong and YE Hong-jun.Comparison Study on Galileo Pulsed Pseudolite Signal Receiving Approaches[J].Journal of Beijing Institute of Technology(Natural Science Edition),2010,30(10):1226-1230. |
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| Authors: | ZHOU Bi-lei REN Yan-yang WANG Chao LUO Wei-xiong and YE Hong-jun |
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| Institution: | ZHOU Bi-lei 1,2,REN Yan-yang3,WANG Chao4,LUO Wei-xiong1,YE Hong-jun4(1.School of Information and Electronics,Beijing Institute of Technology,Beijing 100081,China,2.Shanghai Institute of Satellite Engineering,Shanghai 200240,3.School of Physical Science and Technology,Central South University,Changsha,Hunan 410083,4.Hebei Satellite Navigation Technology and Equipment Engineering Technology Research Centre,Shijiazhuang,Hebei 050081,China) |
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| Abstract: | A kind of Galileo pseudolite signal format is described.For pulsed pseudolite signal receiving,we propose two pulse synchronization methods:the segmented FFT method and the pulse pattern matching method.By taking advantage of segmented correlation between receiving pulse and local pulse,the segmented FFT method obtains timing information of receiving pulsed signal through segmented FFT operation;and the pulse pattern matching method achieves synchronization by using the pseudo-random property of pulse patte... |
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| Keywords: | pulsed pseudolite pulse synchronization pulse pattern matching |
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