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遥感技术主要研究地球表面电磁波的辐射、反射和散射,使用各种传感器收其能量进行处理和显示,应用于资源勘察和生产管理。物体对太阳光的电磁波辐射会产生吸收、反射或透射现象,也就是说太阳辐射的能量一部分被物体吸收,一部分被反射,还有一部分透过物体。某种物体反射的辐射能量是一个连续的波谱,其能量随波长不同而变化,构成物体固有的反射(或吸收)波谱特性。不同的物体有不同的反射波谱特性;同一种物体处于不同的环境条件或自身的不同
Remote sensing technology mainly studies the radiation, reflection and scattering of electromagnetic waves on the surface of the earth, uses various sensors to collect and process the energy and displays it, and is applied to resource exploration and production management. Objects of the electromagnetic radiation of sunlight will produce absorption, reflection or transmission phenomenon, which means that part of the solar radiation energy absorbed by the object, one part is reflected, and some through the object. The radiant energy reflected by an object is a continuous spectrum whose energy varies with wavelength and constitutes the intrinsic reflection (or absorption) spectrum of the object. Different objects have different reflection spectrum characteristics; the same object in different environmental conditions or their own different