| 不同信号体制对GNSS定姿性能影响的分析 |
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| 引用本文： | 秦红磊,陈万通,黄金,杨溶,金天.不同信号体制对GNSS定姿性能影响的分析[J].哈尔滨工业大学学报,2012,44(1):126-131. |
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| 作者姓名： | 秦红磊 陈万通 黄金 杨溶 金天 |
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| 作者单位： | 北京航空航天大学电子信息工程学院;北京航空航天大学电子信息工程学院;北京航空航天大学电子信息工程学院;北京航空航天大学电子信息工程学院;北京航空航天大学电子信息工程学院 |
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| 基金项目： | 国家高技术研究发展计划资助项目(2009AA12Z313) |
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| 摘 要： | 利用GNSS信号能够进行高精度的载体定姿,其算法性能受不同信号体制影响较大.针对这一问题,首先在GNSS单频单历元定姿算法数学模型的基础上,分析了算法性能与码和载波相位测量精度之间的关系,然后研究了不同信号体制对码和载波跟踪精度的影响,最后提出了评估信号体制对定姿性能影响的关键指标,并对其在不同信号体制下进行了仿真实验.仿真结果表明,该指标可以有效地评估不同信号体制下的定姿性能.
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| 关 键 词： | 全球导航卫星系统(GNSS) 姿态测量 信号体制 伪码跟踪 |
Performance analysis for GNSS-based attitude determination under different signal structure |
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| QIN Hong-lei,CHEN Wan-tong,HUANG Jin,YANG Rong and JIN Tian.Performance analysis for GNSS-based attitude determination under different signal structure[J].Journal of Harbin Institute of Technology,2012,44(1):126-131. |
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| Authors: | QIN Hong-lei CHEN Wan-tong HUANG Jin YANG Rong and JIN Tian |
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| Affiliation: | School of Electronic and Information Engineering,Beihang University,100191 Beijing,China;School of Electronic and Information Engineering,Beihang University,100191 Beijing,China;School of Electronic and Information Engineering,Beihang University,100191 Beijing,China;School of Electronic and Information Engineering,Beihang University,100191 Beijing,China;School of Electronic and Information Engineering,Beihang University,100191 Beijing,China |
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| Abstract: | High precise attitude can be determined using GNSS signal,but the performance of GNSS-based attitude determination algorithm is affected by different signal structures.To deal this problem,first,the relationship between performance of algorithm and accuracy of code and carrier phase is analyzed based on the mathematical model of GNSS-based single frequency single epoch attitude determination algorithm,and then the effects of signal structures on the tracking accuracy of code and carrier phase are studied,finally the key indicator is presented to evaluate the effect of signal structures on the performance of attitude determination algorithm.The simulation results demonstrate that the indicator can evaluate the performance of attitude determination algorithm under different signal structure effectively while the conclusion is important for GNSS signal design and signal selection of receivers. |
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| Keywords: | GNSS attitude determination signal structure code tracking |
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