# [1]于先文,薛红琳.竖轴与法线不平行对光纤陀螺/全站仪定向的影响及解决方法[J].东南大学学报(自然科学版),2014,44(2):272-276.[doi:10.3969/j.issn.1001-0505.2014.02.009] 　Yu Xianwen,Xue Honglin.Influence of non-parallel between vertical axis and normal on FOG/TS orientation and its solution method[J].Journal of Southeast University (Natural Science Edition),2014,44(2):272-276.[doi:10.3969/j.issn.1001-0505.2014.02.009] 点击复制 竖轴与法线不平行对光纤陀螺/全站仪定向的影响及解决方法() 分享到： var jiathis_config = { data_track_clickback: true };

44

2014年第2期

272-276

2014-03-20

## 文章信息/Info

Title:
Influence of non-parallel between vertical axis and normal on FOG/TS orientation and its solution method

1东南大学交通学院, 南京210096; 2江苏省土地资源调查中心, 南京210024
Author(s):
1School of Transportation, Southeast University, Nanjing 210096, China
2Jiangsu Land Resources Surveying Center, Nanjing 210024, China

Keywords:

P24
DOI:
10.3969/j.issn.1001-0505.2014.02.009

Abstract:
In order to perfect the orientation algorithm of the combination of the fiber optic gyro(FOG)and the total station(TS), the influence of the non-parallel between the vertical axis of the TS and the normal of the reference ellipsoid passing the station point on the orientation solution is analyzed. The results show that when the station point locates in the latitude from 0° to 70°, the orientation error caused by the non-parallel increases nearly linearly with the increase of the latitude, and the maximum is about 40″. Especially, the maximum of the orientation error is about 27″ in the region of China. In order to eliminate the error, a virtual point on the ground is presented, through which the normal of the ellipsoid is parallel to the vertical axis of the TS, and the coordinates of the station in the orientation algorithm are replaced with those of the virtual point. Then, the formula for the coordinates of the virtual point is educed with the measured values of the leveling error of the TS, the deflection of the vertical and the coordinates of the station. In view of the influence of the leveling error of the TS and the deflection of the vertical on the measuring error, the error of the improved algorithm is analyzed. The results show that the orientation error resulting from the non-parallel between the vertical axis and the normal decreases largely, and the maximum of the orientation error is about 5.2″ in the region of China. Even if the vertical deflection is zero when calculating the virtual point, the maximum of the orientation error is only 7.2″.

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