| 基于TDDM的BOC调制信号伪码同步算法的研究 |
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| 引用本文： | 冯永新,钱博,刘芳.基于TDDM的BOC调制信号伪码同步算法的研究[J].宇航学报,2011,32(3). |
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| 作者姓名： | 冯永新 钱博 刘芳 |
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| 作者单位： | 1. 沈阳理工大学信息科学与工程学院,沈阳,110168
2. 沈阳理工大学信息科学与工程学院,沈阳,110168;南京理工大学控制科学与工程系,南京,210094 |
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| 基金项目： | 国家自然科学基金，辽宁省高校创新团队项目 |
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| 摘 要： | BOC调制技术以其独有的裂谱特性在实现信号频段共用的基础上,不断推动着卫星导航技术的发展.然而,新的TDDM机理的应用对实现BOC调制信号伪码高效同步提出了挑战.为此,在深入研究BOC信号同步的基础上,提出了一种新的基于成功捕获比例峰值判决门限和待调整峰比约束门限的TDDM伪码同步捕获判决方法,建立了基于TDDM的BOC调制信号捕获与跟踪的伪码同步算法.进一步,通过仿真实验,验证了新的伪码同步算法的合理和有效性.
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| 关 键 词： | 伪码同步 |
Research on PN Code Synchronization Algorithm for TDDM-Based BOC Modulation Signal |
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| FENG Yong-xin,QIAN Bo,LIU Fang.Research on PN Code Synchronization Algorithm for TDDM-Based BOC Modulation Signal[J].Journal of Astronautics,2011,32(3). |
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| Authors: | FENG Yong-xin QIAN Bo LIU Fang |
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| Institution: | FENG Yong-xin1,QIAN Bo1,2,LIU Fang1,2 (1.School of Information Science and Engineering,Shenyang Ligong University,Shenyang 110168,China,2.School of Control Science and Engineering,Nanjing University of Science and Technology,Nanjing 210094,China) |
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| Abstract: | Based on the unique split spectrum characteristic of the BOC modulation used to share the current signals,the satellite navigation technique has been developed constantly.However,with the application of new TDDM method,the challenges are brought into the effective PN code synchronization for BOC modulated signals.Therefore,a new PN code synchronization acquisition decision method for TDDM is proposed by setting the successful acquisition ratio peak decision threshold and the adjustment-waiting peak ratio li... |
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| Keywords: | BOC TDDM GPS |
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