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Author:
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Issue:
GPS Precise Point Positioning Algorithm Using One-way Phase Observations
Author(s):
ZUO Xinghua
Pages:
44
-
49
Year:
2012
Issue:
1
Journal:
Gnss World of China
Keyword:
GPS positioning
;
precise point positioning
;
error model
;
Kalman filter esti-mate
;
Abstract:
在VC++开发环境下编写了非差精密单点定位的软件,利用该软件分析了在给定不同初始方差的情况下,对滤波结果的影响,以及采用不同采样率的数据进行计算时,定位精度的比较。实验分析表明:选择合适的初始协方差能使滤波快速的收敛,选择的经验方差能使滤波达到较好的收敛速度,但对滤波稳定后的定位精度没有影响。通过不同采样率数据的定位结果比较证明了高采样率数据的定位精度高于低采样率数据的精度。
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