Editing Missile guidance (section)

=====Active homing=====
{{Main|active radar homing}}
Active homing uses a radar system on the missile to provide a guidance signal. Typically, electronics in the missile keep the radar pointed directly at the target, and the missile then looks at this "angle" of its own centerline to guide itself. Radar [[Angular resolution|resolution]] is based on the size of the antenna, so in a smaller missile these systems are useful for attacking only large targets, ships or large bombers for instance. Active radar systems remain in widespread use in anti-shipping missiles, and in "[[fire-and-forget]]" air-to-air missile systems such as the [[AIM-120 AMRAAM]] and [[R-77]].