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Definition of Remote Sensing
The Experts say "Remote Sensing is …" • Group of techniques for collecting image or other forms of data about an object from measurements made at a distance from the object, and the processing and analysis of the data.
二、遥感技术的特点
➢ 多时相性
重复探测,有利于进行动态分析。
Las Vegas, 1972
Las Vegas, 1992
Las Vegas, 1986
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二、遥感技术的特点
➢ 多时相性
重复探测,有利于进行动态分析。
1986
1992
2002
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三、遥感的分类
1. 按照遥感的工作平台分类: ➢ 地面遥感、航空遥感、航天遥感。
分析判断
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四、遥感技术系统
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The process of remote sensing
1. Energy Source or Illumination 照度(A) - the first requirement for remote sensing is to have an energy source which illuminates or provides electromagnetic energy to the target of interest. 2. Radiation and the Atmosphere (B) - as the energy travels from its source to the target, it will come in contact with and interact with the atmosphere it passes through. This interaction may take place a second time as the energy travels from the target to the sensor.