| 正交复用二进制偏移载波双环跟踪技术 |
| |
| 引用本文： | 任宇飞,卢晓春,冯瑞.正交复用二进制偏移载波双环跟踪技术[J].全球定位系统,2019,44(3):14-22. |
| |
| 作者姓名： | 任宇飞 卢晓春 冯瑞 |
| |
| 作者单位： | 1.中国科学院大学 电子电气与工程学院,北京 100049 |
| |
| 摘 要： | 针对正交复用二进制偏移载波信号(QMBOC)跟踪时存在的多零点模糊问题,首先比较了模糊消除的常用方法,并对双环跟踪方法进行了理论分析,在此基础上利用二进制偏移载波信号(BOC(1,1))的双环跟踪环路对QMBOC信号进行了跟踪,同时将副载波联合环路纳入双环跟踪方法作研究对比．仿真结果表明,在载噪比高于24 dB·Hz的环境下,BOC(1,1)的双环跟踪误差趋近于0,小于联合跟踪方法下的跟踪误差,实现了良好的处理效果．
|
| 关 键 词： | QMBOC信号 跟踪模糊消除 ASPeCT跟踪 BOC(1 1)双环跟踪 联合双环跟踪 |
The technique of dual-loop tracking of QMBOC signal |
| |
| Institution: | 1.University of Chinese Academy of Sciences, School of Electronic, Electrical and Communication Engineering, Beijing 100049, China2.National Time Service Center of Chinese Academy of Sciences College, Xi’an 710600, China3.University of Chinese? Academy of Sciences, Space Engineering University of PLA, Beijing 101416, China |
| |
| Abstract: | Aiming at the problem of multi-zero ambiguity elimination in quadrature multiplexed binary offset carrier signal tracking, the common new dual-loop tracking method is theoretically analyzed under the analysis of the common methods of ambiguity elimination, and the dual-loop tracking of the binary offset carrier signal is used to track and simulate QMBOC signal, meanwhile it is compared with the sub-carrier joint loop tracking simulation. The simulation results show that the BOC(1,1) dual-loop tracking error approaches 0 under the environment of the carrier-to-noise ratio higher than 24dB·Hz, which is less than tracking error under the joint tracking method, which is achieving better processing results. |
| |
| Keywords: | |
|
| 点击此处可从《全球定位系统》浏览原始摘要信息 |
| 点击此处可从《全球定位系统》下载免费的PDF全文 |
|
