Providing atmospheric correction data for GNSS network-RTK system by encoding data according to quad-tree hierarchy

• Main Authors: SPENCER PAUL, TAKAC FRANK
• Format: Patent
• Language: Chinese; English
• Published: 27.10.2020
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

Providing atmospheric correction data for a GNSS network-RTK system by encoding data according to a quad-tree hierarchy. The invention relates to providing atmospheric correction data in a GNSS network-RTK system for correcting GNSS data, wherein a base triangulation (6) that encloses at least part of the reference stations (3) of the GNSS network-RTK system is subdivided into child triangles (10)by means of a recursive division of parent triangles (10) into four child triangles, synthetic data (11) are determined for each of the child triangles (10) based on a triangulation algorithm appliedto basic data of the reference stations (3) such that the synthetic data (11) represent a gridded representation of the basic data, and access to correction data is provided, wherein the correction data comprise at least part of the synthetic data (11) arranged in a quad-tree hierarchy (100). 通过根据四叉树层次结构对数据进行编码为GNSS网络-RTK系统提供大气校正数据。本发明涉及提供GNSS网络-RTK系统中的用于校正GNSS数据的大气校正数据，其中，借助于将父三角形(10)递归分割成四个子三角形来将包围GNSS网络-RTK系统的参考站(3)的至少