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一、森林植物病虫害的主要光谱特征(一)遥感技术对目标物体进行探测和识别的工作原理,就是以各种物体对电磁波辐射的反射或发射辐射的不同谱分布作为理论基础的。电磁波占有很长的波长范围,最长的是数
I. Main Spectral Characteristics of Forest Plant Diseases and Pests (1) The working principle of remote sensing technology in detecting and identifying target objects is based on the theory that different objects have different spectral distribution of electromagnetic radiation or emitted radiation. Electromagnetic waves occupy a very long wavelength range, the longest is the number