Answer in brief

What are the components of remote sensing?

Remote sensing can be defined as the science and arts of collecting information of an object without touching them.

The component of remote sensing:

*Energy source

*Transmission path

*Target

*Sensor

Energy source: Solar radiation is the primary source of energy for remote sensing. Sensor can be classified as passive or active on the basis of source of energy. Sensor which sense natural radiations, either emitted or reflected from earth are called passive sensor. The sensor which produce their own electromagnetic radiations are called active sensors.

Transmission path: The energy which is stored by the sensor has to be transmitted, often in electronic form, to a receiving and processing station at earth where data are processed and stored in digital form.

Target: Energy travels from source to the target. Once the energy makes it way to the target through atmosphere, it interacts with the target depending on the properties of the both the target and the radiation.

Sensor: The sensor for taking observation needs to be mounted on a platform. This platform can be ground based, airborne or space borne.