Countermeasures

Countermeasures, also known as sensor countermeasures, were a collection of methods and technology that were designed to hide a starship's presence. Sensor-stealth systems were installed on ships and were capable of electronically muffling the energy signature from the craft's weapons, engines, or power generators.

Sensor jammers flooded the area around a starship with static and random signals in an effort to interfere with enemy sensors. Sensor decoys were also used to duplicate the energy signals from a starship, effectively making it appear that there were two identical vessels.

Aside from these technological methods, a ship could shut down all of its power systems and "run silent", effectively drifting in space until the chance of detection had passed.

Text and facts from the “Countermeasures” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.