Flight GNSS data

GNSS-R data used in paper "Sea surface height measurements by UAV altimeters using LiDAR and low-cost GNSS Reflectometry"F1, F2, F3 are for Flight 1, 2, 3 respectively. Time, H_U, h_L, h_G, H_B are includedF1vSats includes All, GPS only, GLONASS only, BeiDou only analysis for Flight 1Tide is the SSH variations recorded by a bottom pressure gauge本论文《基于激光雷达（LiDAR）与低成本GNSS反射测量（GNSS-R, Global Navigation Satellite System Reflectometry）的无人机高度计海面高度测量》所使用的GNSS-R数据集。其中F1、F2、F3分别对应第1、2、3次飞行任务。数据集包含以下字段：时间（Time）、无人机高度H_U、激光雷达高度h_L、地面高度h_G、船体高度H_B。F1vSats涵盖针对第1次飞行任务的全星座、仅GPS、仅GLONASS、仅北斗（BeiDou）四类分析场景。潮汐（Tide）指由底部压力计记录的海面高度（SSH, Sea Surface Height）变化。