What is remote sensing

Remote sensing simply means remote sensing, which refers to non-contact, long-distance detection technology. Generally, it refers to the use of sensors/remote sensors to detect the radiation and reflection characteristics of electromagnetic waves of an object. Remote sensing is the detection of target features far away from the target and in non-contact with the target object by means of remote sensors, which are instruments sensitive to electromagnetic waves.

To obtain the reflected, radiated or scattered electromagnetic wave information (such as electric field, magnetic field, electromagnetic waves, seismic waves and other information), and extraction, determination, processing, analysis and application of a science and technology.