公开(公告)号：US20170003395A1

公开(公告)日：2017-01-05

申请号：US15193824

申请日：2016-06-27

Applicant: TOPCON CORPORATION

Inventor： You SASAKI ,  Tadayuki ITO

IPC: G01S19/22

CPC classification number: G01S19/428 ,  G01S19/42

Abstract: A technique for preventing decrease in positioning precision due to reflected waves from a navigation satellite that is blocked by an obstacle in a positioning technique using a GNSS is provided. A navigation signal processing device includes a data obtaining unit 121, an elevation angle mask setting unit 125, and a point cloud position data obtaining unit 123. The data obtaining unit 121 performs positioning based on navigation signals from navigation satellites. The elevation angle mask setting unit 125 sets a condition for restricting utilization of the navigation signals from a specific navigation satellite. The point cloud position data obtaining unit 123 obtains three-dimensional point cloud position data of the surroundings of an antenna that receives the navigation signals. The elevation angle mask setting unit 125 sets the condition based on the three-dimensional point cloud position data.

Abstract translation: 提供了一种用于在使用GNSS的定位技术中防止由于由障碍物阻挡的导航卫星的反射波引起的定位精度降低的技术。 导航信号处理装置包括数据获取单元121，仰角掩模设置单元125和点云位置数据获取单元123.数据获取单元121基于来自导航卫星的导航信号执行定位。 仰角掩模设定部125设定用于限制来自特定导航卫星的导航信号的利用的条件。 点云位置数据获取单元123获取接收导航信号的天线的周围的三维点云位置数据。 仰角掩模设定部125基于三维点云位置数据来设定条件。