What is meant by remote sensing

Remote sensing is very broad, any non-contact process of obtaining information about an object can be called remote sensing, and the study of this process is called remote sensing. The academic definition is from the mounted on the remote sensing platform on the sensor to obtain the object's spectral information, transmitted to the ground station, after processing, so as to get the object's image information or other spectral information of the whole process of a discipline. From the definition you can see that you want to learn this discipline to learn the field is quite wide, you can study the sensor, remote sensing platform, image processing, spectral characteristics of the study ......;

Recommended by Wuda, Tongji's textbook first on the spectral characteristics of a concept that is, remote sensing is mainly the use of different objects on the same wave have not exactly the same reflective radiation characteristics, the same object to different bands of waves have different reflective radiation characteristics of this characteristic to achieve the distinction between the principle of discrimination to do the work, and then understand some remote sensing platforms, sensors, such as cameras, cameras, and then learn the image graphics processing course to information if you want to @ my microblogging in the sina ----remotsing