Experiments of Soil Moisture Retrieval Based on Extended Kalman Filter

• 作 者: QinLi;
• 机 构: Capital Normal University Key Lab of 3D Information Acquisition and Application,MOE,Beijing 100037,C
• 出 处: 中国地理学会2009百年庆典学术大会
• 发表日期: 2009年期

　　This paper is intended to investigate the sensing of surface parameters by microwave radiometry.A Extended Kalman filter(EKF) is developed to manage the nonlinear relationship between surface parameters and radiometric signatures.Its performance of retrieving plant water content (PWC) and soil moisture content (SMC) from brightness temperatures is examined by using both predictions from model simulations and measurements from field experiments.