| 基于ARM+FPGA的相位平滑伪距差分定位方法 |
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| 引用本文： | 温泉源,纪元法,孙希延,符强.基于ARM+FPGA的相位平滑伪距差分定位方法[J].河南师范大学学报(自然科学版),2016(4):63-68. |
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| 作者姓名： | 温泉源 纪元法 孙希延 符强 |
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| 作者单位： | 桂林电子科技大学信息与通信学院广西精密导航技术与应用重点实验室 |
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| 基金项目： | 国家自然科学基金(61162007;61271284);广西自然科学基金(2013GXNSFA019004);2014年主任基金(GXKL0614102);广西硕士研究生创新项目(YCSZ2015146) |
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| 摘 要： | 为了满足用户更高的定位精度要求,研究了载波相位平滑伪距差分定位方法.根据差分定位原理,基于MATLAB平台自主编制了差分解算软件,兼容北斗和GPS伪距差分定位;基于ARM+FPGA平台的接收机实现了相位平滑伪距差分定位.实验结果表明,零基线条件下,相位平滑伪距差分算法定位精度可由标准定位的米级水平提高到亚米级,性能稳定.基线距离增大,定位精度随之降低,误差在±4m内,差分讯龄和定位精度成正比关系.
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| 关 键 词： | 北斗系统 伪距差分 基线 讯龄 ARM+FPGA 载波相位平滑 |
Carrier Phase Smooth Pseudorange Differential Positioning Method Based on ARM+FPGA |
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| WEN Quanyuan;JI Yuanfa;SUN Xiyan;FU Qiang.Carrier Phase Smooth Pseudorange Differential Positioning Method Based on ARM+FPGA[J].Journal of Henan Normal University(Natural Science),2016(4):63-68. |
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| Authors: | WEN Quanyuan;JI Yuanfa;SUN Xiyan;FU Qiang |
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| Institution: | WEN Quanyuan;JI Yuanfa;SUN Xiyan;FU Qiang;School of Information and Communication Engineering,Guilin University of Electronic Technology;Precision Navigation Technology and Application Laboratory of Guangxi; |
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| Abstract: | In order to satisfy the user's higher positioning requirements,we studied the carrier phase smoothed pseudorange differential positioning method.According to persuade-range positioning theory,pseudo-range differential positioning software has been programmed based on MATLAB,which is compatible with BDS and GPS.At the same time,receiver implemented phase smoothed pseudo-range differential positioning based on ARM +FPGA platform.Experimental results show that:the positioning accuracy of phase smoothed pseudo-range differential algorithm can be increased from meter to sub-meter under the zero baseline,and the performance is stable;Baseline distance increases,the positioning accuracy decreases,and the error is within 4m,and there is a positive correlation between differential age and positioning accuracy. |
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| Keywords: | BDS pseudo-range differential baseline differential age ARM+FPGA carrier phase smooth |
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