一种基于多基线极化干涉数据的植被高度反演方法及装置
By constructing a directional volume scattering model using multi-baseline polarimetric interferometry data, the problem of difficulty in solving the OVoG model in vegetation height inversion was solved, and a more accurate solution for vegetation height was achieved.
CN119782663BActive Publication Date: 2026-07-17BEIJING INST OF ENVIRONMENTAL FEATURES
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING INST OF ENVIRONMENTAL FEATURES
- Filing Date
- 2024-12-19
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing Oriented Volume Scattering (OVoG) models are difficult to solve in vegetation height inversion, especially when the lack of single baseline data makes the equations unsolvable.
Method used
Using multi-baseline polarimetric interferometric data, the polarimetric complex coherence coefficient was obtained through polarization processing. A directional volume scattering model was constructed, and the observation space was expanded using multi-baseline data. The land volume ratio and surface phase were solved, and the vegetation height was calculated by combining the extinction coefficient variation relationship.
Benefits of technology
This enables more accurate solutions for vegetation height and related parameters, improving inversion accuracy.
✦ Generated by Eureka AI based on patent content.
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Figure CN119782663B_ABST
Abstract
本发明提供了一种基于多基线极化干涉数据的植被高度反演方法及装置。方法包括：对获得的多条基线的植被散射数据进行极化干涉处理，得到多条基线的极化复相干系数；根据每条基线的多极化复相干系数和方向体散射模型，分别得到每条基线中每种极化方式对应的地体积比；根据每条基线中每种极化方式对应的地体积比和每条基线的极化复相干系数，计算每条基线中每种极化方式对应的地表相位；根据每条基线中每种极化方式对应的地表相位和植被高度随消光系数的变化关系，计算每种极化方式对应的优化消光系数集合；其中，所述优化消光系数集合为关于植被高度的函数；基于每种极化方式对应的优化消光系数集合，计算得到待测植被的高度。本方案，能够实现对植被高度的精确求解。
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