一种基于GNSS-RTK的地形测绘方法及系统

• Format: Patent
• Language: Chinese
• Published: 22.07.2025
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; GYROSCOPIC INSTRUMENTS; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING DISTANCES, LEVELS OR BEARINGS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; SURVEYING; TESTING

本发明提供一种基于GNSS-RTK的地形测绘方法及系统，该方法包括：获取目标区域内的多源定位信号数据，多源定位信号数据包括卫星原始观测值、接收机天线相位中心偏差参数以及实时动态差分修正信息；对多源定位信号数据进行多路径干扰抑制处理，生成抑制干扰后的相位观测序列；将抑制干扰后的相位观测序列输入地形特征解算模型，提取目标区域的地形高程变化特征参数；基于地形高程变化特征参数与预设地形数据库中的基准高程参数进行空间融合处理，生成目标区域的三维地形曲面数据；根据三维地形曲面数据与历史地形测绘结果的差异度动态调整地形图更新频率，输出实时地形测绘结果。通过本发明可以在复杂地形环境应用中兼顾精度、实时性与资源效率。