本发明涉及一种基于CYGNSS数据的星载GNSS‑R高精度土壤水分估算方法,通过CYGNSS获取多组卫星数据,对数据进行预处理得到标准数据;对标准数据利用双基雷达方程处理得到第一地表反射率;将水域区域对应的卫星高度角输入菲涅尔反射方程计算得到反射率Γ<Sub>water</Sub>;
利用CYGNSS(cyclone global navigation satellite system)采集的GNSS卫星反射信号,提出一种基于星载GNSS-R的水体分布探测方法。首先对CYGNSS低轨卫星星座采集的GNSS反射信号进行处理,获取地表反射率数据;再按0.01°×0.01°的空间分辨率将研究区划分为格网,剔除异常值和无效值后,利用区域均值算法重新计算各格网的反射率,并...
本发明涉及一种基于CYGNSS数据的星载GNSS‑R高精度土壤水分估算方法,通过CYGNSS获取多组卫星数据,对数据进行预处理得到标准数据;对标准数据利用双基雷达方程处理得到第一地表反射率;将水域区域对应的卫星高度角输入菲涅尔反射方程计算得到反射率Γwater;筛选出水域区域第一地表反射率SRwater,利用公式得到系统误差校正系数,基...
Ocean wind speed monitoring is the main objective of the recently launched Cyclone GNSS (CyGNSS), a GNSS-R constellation of eight microsatellites, launched... M Asgarimehr,C Arnold,T Weigel,... - 《Remote Sensing of Environment》 被引量: 0发表: 2022年 Signal-to-Noise Ratio Analyses of Sp...
Global Navigation Satellite System-Reflectometry (GNSS-R); Cyclone Global Navigation Satellite System (CYGNSS); delay-Doppler maps (DDMs); swell height; particle swarm optimization (PSO); simulated annealing (SA)1. Introduction Swell height information is of much concern in the design of coastal ...
ionosphere; scintillation; GNSS-R; equatorial plasma depletions; bubbles; CYGNSS; swarm Graphical Abstract1. Introduction 1.1. Physics of the Ionosphere The ionosphere is a layer of the atmosphere that plays a very important role in satellite communications and Earth Observation. This layer, which ...
Pan-tropical soil moisture mapping based on a three-layer model from CYGNSS GNSS-R data In practice, the surface reflectivity (Γ) along with its statistics derived from the CYGNSS data and the ancillary vegetation opacity (τ) data from ... Q Yan,W Huang,S Jin,... - 《Remote Sensing ...
ionosphere; scintillation; GNSS-R; equatorial plasma depletions; bubbles; CYGNSS; swarm Graphical Abstract1. Introduction 1.1. Physics of the Ionosphere The ionosphere is a layer of the atmosphere that plays a very important role in satellite communications and Earth Observation. This layer, which ...