面向航空遥感应用的可调节植被指数研究

针对航空遥感中航片间存在光谱差异现象。并结合航空绿化遥感信息提取的具体特点和植被指数构造原理，提出了一种适应航空绿化遥感信息提取的可调节航空植被指数——airborne NDVI(ANDVI)．根据ANDVI的特点设计出了航空绿化遥感信息提取流程，经上海的绿化信息提取实践，证明了ANDVI能够很好的适应航空遥感的特点，有效的克服外因对地物波谱反射成像的非线性扰动．从而为航空遥感信息提取，特别是基于植被指数的生态环境参数的计算提供了很好的手段．

Study on ANDVI and Its Application for Airborne Remote Sensing

Considering the spectral difference between airborne remote sensing images, the characters of information extraction on afforestation and principles of vegetation index construction, a new adjustable vegetation index, airborne normalized difference vegetation index (ANDVI), was promoted in this paper. Further, a set of flowchart of afforestation information extraction was developed according to the characters of ANDVI. Still, the new approach was applied to estimate vegetation index in Shanghai city and a satisfactory result was obtained. The application shows that ANDVI is suitable to airborne remote sensing and it is effective to eliminate non-linear disturbance of reflection caused by some factors. ANDVI provides a reliable way to extract airborne remote sensing information and estimate ecological-environment parameters based on vegetation indices.