An IR sensor is located near the TV and wired to the receiver, which can be many feet away in the equipment rack. The receiver has an amplifier and an "IR blaster" that showers IR signals to all ...

The beauty of infrared ... and tracking of targets and threats, rather than just a single aperture as on traditional systems.

The sensor suite consists of a television sensor, infrared ... or 40 mm gatling guns. The AC-130U employs a synthetic aperture strike radar for long-range and adverse weather target detection ...