remote sensing sensors | remote sensing and gis | lecture 4(ii)

above video is based on the concept of remote sensing sensors or active and passive sensors . This is the second important components of remote sensing. In this video we discuss about remote sensing sensors, remote sensing sensor types, active and passive sensors. ------------------------------------------------------------------ remote sensing sensors - Sensors- there are two type of sensors: 1- passive sensor 2- active sensors Passive Sensors -- Passive sensors , it detect natural energy(radiation) that is emitted or reflected by the object or scene being observed. Reflected sunlight is the most common source of radiation measured by passive sensors. Active sensors -- Active sensors it transmit their own signal and measure the energy that is reflected and transmitted back or scatter back from the target. For example radar sonar. -------------------------------------------------------------------------------------- you can also watch -- 1: remote sensing and gis (playlist) --    • remote sensing and gis   Class 1: remote sensing in hindi -    • remote sensing in hindi | remote sensing a...   Class 2: remote sensing process in hindi -    • remote sensing process in hindi | remote s...   Class 3: history of remote sensing --    • history of remote sensing in hindi | remot...   Class 4(i) : remote sensing platforms in hindi --    • remote sensing platforms in hindi | remote...