| 组合定位系统 |
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| 引用本文： | 向大威,许伟杰,景永刚. 组合定位系统[J]. 南京大学学报(自然科学版), 2011, 0(2): 189-194 |
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| 作者姓名： | 向大威 许伟杰 景永刚 |
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| 作者单位： | 中国科学院声学研究所东海研究站; |
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| 摘 要： | 组合定位系统由GPS(Global Position System)、航向姿态传感器以及超短基线定位系统所组成.常规的超短基线阵采用相位法进行定位.为了避免相位模糊,阵元间距必须小于半个波长,因此定位精度不会很高.组合定位系统中的超短基线阵采用时延法进行定位,阵元间距可以取得远比半波长大.定位时,组合定位系统在海面飘浮...
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| 关 键 词： | GPS 超短基线定位系统 最小二乘法 宽带信号 最大似然时延估计 |
Combined positioning system |
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| Xiang Da-Wei,Xu Wei-Jie,Jing Yong-Gang. Combined positioning system[J]. Journal of Nanjing University: Nat Sci Ed, 2011, 0(2): 189-194 |
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| Authors: | Xiang Da-Wei Xu Wei-Jie Jing Yong-Gang |
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| Affiliation: | Xiang Da-Wei,Xu Wei-Jie,Jing Yong-Gang(Shanghai Acoustic Laboratory,Institute of Acoustics,Chinese Academy of Sciences,Shanghai,200032,China) |
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| Abstract: | Combined positioning system consists of GPS,attitude sensor and USBL(Ultra-short Base Line) system.For ordinary USBL,target position is determined by the phase method.In order to avoid phase ambiguity,the distance between two elements should be less than 0.5 wave length,and thus the accuracy will not be very high.For the USBL in the combined system,position is determined by the time method,the distance between two elements is larger than that of the ordinary USBL.During positioning,the combined positioning ... |
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| Keywords: | GPS USBL least Squares wideband signal maximum likelihood estimation |
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