| 北斗B1I信号的捕获算法 |
| |
| 引用本文： | 王丽黎,杨阳.北斗B1I信号的捕获算法[J].计算机系统应用,2016,25(3):194-198. |
| |
| 作者姓名： | 王丽黎 杨阳 |
| |
| 作者单位： | 西安理工大学 自动化与信息工程学院, 西安 710048,西安理工大学 自动化与信息工程学院, 西安 710048 |
| |
| 摘 要： | 北斗B1I信号的捕获是北斗2代接收机的核心模块,它是基于码相位和多普勒频移二维搜索的过程.对于捕获模块,通常采用并行码相位搜索捕获算法来实现对空中可见卫星的捕获.针对信号较弱情况下的卫星捕获,采用了非相干累加与并行码相位搜索捕获相结合的方法.测试结果表明,该捕获算法能够有效快速地实现弱信号的捕获.
|
| 关 键 词： | 北斗B1I信号 接收机 捕获 弱信号 非相干累加 |
| 收稿时间： | 7/6/2015 12:00:00 AM |
| 修稿时间： | 9/6/2015 12:00:00 AM |
Acquisition Algorithm of BeiDou B1I Signal |
| |
| WANG Li-Li and YANG Yang.Acquisition Algorithm of BeiDou B1I Signal[J].Computer Systems& Applications,2016,25(3):194-198. |
| |
| Authors: | WANG Li-Li and YANG Yang |
| |
| Affiliation: | Faculty of Automation and Information Engineering, Xi'an University of Technology, Xi'an 710048, China and Faculty of Automation and Information Engineering, Xi'an University of Technology, Xi'an 710048, China |
| |
| Abstract: | BeiDou B1I signal acquisition is a hard core in a BeiDou receiver and is the two-dimension process of the search about the code delay and Doppler frequency. For acquisition, parallel search algorithm of code in frequency domain are usually adopted. For the acquisition of weak signal, a method combining non-correlation integration with parallel search algorithm of code in frequency domain was introduced. The test results show that the acquisition algorithm can effectively and quickly acquire the weak signal. |
| |
| Keywords: | BeiDou B1I signal receiver acquisition weak signal non-coherent integration |
|
| 点击此处可从《计算机系统应用》浏览原始摘要信息 |
|
点击此处可从《计算机系统应用》下载全文 |
|
