Active remote sensing involves the use of a radio wave, laser, or radar to transmit a signal towards an object and then measure the return signal that is reflected back. Examples of active remote sensing include radar imagery, sonar, and lidar.
Active remote sensing involves the use of a radio wave, laser, or radar to transmit a signal towards an object and then measure the return signal that is reflected back. Examples of active remote sensing include radar imagery, sonar, and lidar.