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| 一种BOC调制信号的同步主峰检测新算法 | |
| 引用本文： | 杨力,潘成胜,冯永新,薄煜明. 一种BOC调制信号的同步主峰检测新算法[J]. 宇航学报, 2010, 31(8). DOI: 10.3873/j.issn.1000-1328.2010.08.000 |
| 作者姓名： | 杨力 潘成胜 冯永新 薄煜明 |
| 作者单位： | 1. 南京理工大学自动化学院,南京,210094;大连大学通信与网络重点实验室,大连,116622 2. 沈阳理工大学,沈阳,110168 3. 南京理工大学自动化学院,南京,210094 |
| 摘 要： | BOC(Binary Offset Carrier)调制信号具有相关函数多值性,这就导致接收机同步阶段容易错锁在虚假相关主峰上。本文提出了一种新的主峰检测算法,很好地解决了接收机同步中出现的此类错锁问题。新算法通过本地增设一条QBOC支路,与BOC支路结果经补零、移位、相加计算而实现,称此算法为OQCC(Offset Quadratic Cross-Correlation)算法。理论与仿真分析结果表明,OQCC算法同时适用于奇数阶和偶数阶BOC调制信号;能够在不改变BOC信号主峰宽度的情况下,通过降低副峰,有效提高主副峰分离度;在同等条件下,可有效提高BOC信号主峰检测概率,降低BOC信号副峰检测概率。 |
| 关 键 词： | BOC调制信号 QBOC调制信号 主峰检测算法 |
A New Algorithm for Synchronous Main Lobe Detection for BOC Modulated Navigation Signals |
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| YANG Li,PAN Cheng-sheng,FENG Yong-xin,BO Yu-ming. A New Algorithm for Synchronous Main Lobe Detection for BOC Modulated Navigation Signals[J]. Journal of Astronautics, 2010, 31(8). DOI: 10.3873/j.issn.1000-1328.2010.08.000 | |
| Authors: | YANG Li PAN Cheng-sheng FENG Yong-xin BO Yu-ming |
| Affiliation: | YANG Li1,2,PAN Cheng-sheng1,FENG Yong-xin3,BO Yu-ming1(1.Dept.Automation,Nanjing University of Science and Technology,Nanjing 210094,China,2.Dalian University,Dalian 116622,3.Dept.Information,ShenYangLiGong University,Shenyang 110168,China) |
| Abstract: | The autocorrelation function of Binary Offset Carrier (BOC) modulated signals has multiple peaks,thus leading a false lock on secondary peaks with high probability both in the acquisition and tracking.A new main lobe detection algorithm is proposed to solve this problem in this paper.The new algorithm is implemented by adding a local quadratic BOC signal and correlating with the received in-phase BOC signal by zero padding,shifting and adding.It is named as Offset Quadratic Cross-Correlation algorithm,or OQ... |
| Keywords: | BOC modulated signal QBOC modulated signal Main lobe detection algorithm |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |