Rice crop parameter retrieval using multi-temporal, multi-incidence angle Radarsat SAR data
Rice crop parameter retrieval using multi-temporal, multi-incidence angle Radarsat SAR data
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DOI：
10.1016/j.isprsjprs.2005.05.001
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发表时间：
2005-08-01
影响因子：
12.7
通讯作者：
Parihar, JS
中科院分区：
文献类型：
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作者：
Chakraborty, M;Manjunath, KR;Parihar, JS
利用不同入射角的RADARSAT标准波束SAR数据，研究了印度西孟加拉邦水稻主产区水稻作物的时间后向散射。对后向散射与作物生长参数的相关性进行了研究。对作物年龄和作物高度的拟合结果为二阶多项式。浅角度数据（> ~ 40度）与作物高度的相关性优于陡角度数据（23度）。利用反演算法生成作物高度和年龄的空间图。在一个村庄验证的结果显示，准确率超过90%。(C) 2005国际摄影测量与遥感学会（ISPRS）Elsevier B.V.版权所有。
Temporal RADARSAT Standard beam SAR data of different incidence angle were analysed to study the temporal backscatter of rice crop for a predominant rice-growing region in West Bengal, India. Correlation studies of backscatter with crop growth parameters were carried out. Second order polynomial was the best fit obtained for crop age and crop height. Shallow angle data (>40 degrees) was found better correlated to crop height than steep angle (23 degrees) data. Inversion algorithm was used to generate spatial maps of crop height and age. The results validated over a village showed an over all 90% accuracy. (C) 2005 International Society for Photogrammetry and Remote Sensing, Inc. (ISPRS). Published by Elsevier B.V. All rights reserved.