In active remote sensing,
A)an operator on the ground needs to activate controls for tasking a satellite to obtain a specific image.
B)only the infrared bands in the electromagnetic spectrum are sensed.
C)the remote sensing device measures all possible bands in the electromagnetic spectrum.
D)the remote sensing device generates its own source of energy and measures the reflection or return of that particular type of energy.

Question

Quizplus · Accepted Answer

Active remote sensing involves a remote sensing device generating and emitting its own source of energy, such as radar or lidar, and measuring the reflection or return of that particular type of energy. This is different from passive remote sensing, which just measures the naturally occurring energy in the environment. Therefore, option D is the correct choice.

In Active Remote Sensing