Remote sensing can be divided into two types of methods: Passive remote sensing and Active remote sensing. Passive sensors gather radiation that is emitted or reflected by the object or surrounding areas. Reflected sunlight is the most common source of radiation measured by passive sensors.

What is remote sensing and its types?

There are two types of remote sensing technology, active and passive remote sensing. Active sensors emit energy in order to scan objects and areas whereupon a sensor then detects and measures the radiation that is reflected or backscattered from the target.

What are the three remote sensing?

1.1 Energy Source or Illumination. 1.2 Interaction with the Target. 1.3 Recording of Energy by the Sensor. 1.4 Transmission, Reception, and Processing.