森林高度的单基线P波段PolInSAR反演Forest height inversion using single baseline P-band of polarimetric SAR interferometry
张林科,豆靖林
摘要(Abstract)：
针对传统三阶段方法难以适用于P波段极化干涉合成孔径雷达(PolInSAR)植被高反演难题,该文采用先验信息对消光系数进行固定,在此基础之上,对经典三阶段算法中地体散射幅度比为0的假设进行参数化。通过模拟实验验证新方法相比已有方法在不同地体幅度比条件下均能得到较好的反演精度,且固定消光系数不会引起树高显著偏差。最后,利用2景E-SAR P波段全极化数据进行树高度反演。实验结果表明,新方法反演树高的均方根误差(RMSE)为3.43m,相比已有方法,RMSE提高的幅度为35.7%,有效提升了传统三阶段算法的适用范围。
关键词(KeyWords)： 极化干涉SAR;森林高;地体幅度比;三阶段算法
基金项目(Foundation):
作者(Author): 张林科,豆靖林
DOI: 10.16251/j.cnki.1009-2307.2018.10.015
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