ABSTRACT
Remote sensing is a method of obtaining information from distant objects without direct contact. is is possible due to the existence or the generation of force elds between the sensing device and the sensed object. Usable force elds are mechanical waves in solid matter (seismology) or in liquids (sound waves). But the principal force eld used in remote sensing is that of electromagnetic energy, as characterized by the Maxwell equations. e emission of electromagnetic waves is suitable for directional separation. us, images of the radiation incident on a sensor may be generated and analyzed.
