Theoretical Modeling and Measurement Comparison of Season-long Rice Field Monitoring
The development of a theoretical model to describe the scattering mechanisms involved in the remote sensing of rice crops is essential, as it ensures correct application of remote sensing data for rice monitoring. The theoretical model used in this study is based on the radiative transfer theory applied on a layered dense discrete random medium. The dense medium phase and amplitude correction theory (DM-PACT),which considers the coherent effects of the scatterers,is incorporated in the development of the phase matrices of the scatterers,which are modeled after the physical geometry of the plants. Ground truth measurements of rice fields were acquired at Sungai Burung,Selangor,Malaysia for an entire season. These measurements are used in the theoretical model to calculate the backscattering coefficients of rice fields. The results are then compared to those obtained from RADARSAT images to test the validity of the model. Comparisons show promising results,but further research is required to improve on the current model.
J.Y.Koay C.P.Tan H.T.Ewe H.T.Chuah Saiful Bahari
Multimedia University,Malaysia Malaysian Center for Remote Sensing,Malaysia
国际会议
Progress in Electromagnetics Research Symposium 2005(2005年电磁学研究新进展学术研讨会)(PIERS 2005)
杭州
英文
25-28
2005-08-22（万方平台首次上网日期，不代表论文的发表时间）