环境小卫星S波段SAR监测土壤水分变化应用分析

被引:4
作者
陈权
李震
王磊
机构
[1] 中国科学院遥感应用研究所遥感信息科学国家重点实验室
关键词
后向散射系数; 土壤水分; S波段SAR; IEM模型; 模拟图像; HJ-1C;
D O I
暂无
中图分类号
TP79 [遥感技术的应用];
学科分类号
摘要
通过IEM正演模型的模拟数据,发展了一种用S波段(3.0GHz)、VV极化数据反演土壤含水量相对变化的算法;选择典型的土壤含水量、地表粗糙度及入射角变化范围,模拟出两幅SAR图像,并把该算法应用到模拟图像中,对算法进行验证和改进;将结果与输入值对比,结果表明,该算法能较好地提取土壤含水量时间和空间变化信息。
引用
收藏
页码:12 / 15
页数:4
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