| Sensing of false locks of the AFC loop in GPS receivers | |
| Li Guodong ; Gui Xiaowei ; Yin Xuming ; Feng Zhenming | |
| 2010-05-06 ; 2010-05-06 | |
| 关键词 | Practical/ automatic frequency control Global Positioning System radio receivers radio tracking/ global positioning system GPS receiver automatic frequency control AFC loop false lock detection frequency tracking/ B6250G Satellite communication systems B6330 Radionavigation and direction finding C3110G Frequency control |
| 中文摘要 | False locks can occur in global positioning systems (GPS) when tracking the GPS carrier frequency using an automatic frequency control (AFC) loop. A method is given to detect and correct false locks in noisy environment based on changes in the pre-correlation results. Simulation results show that the method can immediately detect false lock just after the AFC algorithm and modify the tracking frequency to the right point within 1-2 navigation data bits. Tests also show that the scheme is easily realized and effectively avoids the extra tracking time caused by false locks. |
| 语种 | 中文 ; 中文 |
| 出版者 | Tsinghua Univ. Press ; China |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/11997]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | Li Guodong,Gui Xiaowei,Yin Xuming,et al. Sensing of false locks of the AFC loop in GPS receivers[J],2010, 2010. |
| APA | Li Guodong,Gui Xiaowei,Yin Xuming,&Feng Zhenming.(2010).Sensing of false locks of the AFC loop in GPS receivers.. |
| MLA | Li Guodong,et al."Sensing of false locks of the AFC loop in GPS receivers".(2010). |
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