Active sensors actively probe the environment, for example, a sonar or radar sensor, and they require continuous energy from a power source.

Aperture: The aperture of a radar sensor is real or synthetic.

However, she was betrayed again by the man after he blew off her hand containing the radar sensor.

AC-130s were also used for intelligence gathering with their sophisticated long-range video, infrared and radar sensors.

Position data is accumulated radar sensors over the span of a few minutes.

A week earlier they introduced a car that, with "artificial intelligence", can drive itself using video cameras and radar sensors.

What would help would be a wider ground network of radar sensors to scan the sky.

The radar sensor is positioned on the earth surface with a height h above the ground.

Approach Sensor (such as a radar sensor) - the door opens when a user approaches it.

Basically there are two different classes of radar remote sensors for ocean waves.