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Radar was the most common form of SACLOS signals in early systems, because, in the anti-aircraft role, the target is typically already being illuminated by a radar signal. However, a beam-riding missile flies directly at the target, which is often inefficient for a high-speed target like an aircraft.
The faster the bat speed, the faster the ball will come off the bat. [2] Furthermore, researchers have long established that home run hits are dependent on swing speed. Most notably, one can logically assume that a faster swing will result in the ball traveling farther. A 3-6% increase in bat speed can significantly affect the distance a ball ...
BAT radar guided bomb RBS-15F anti-ship missile (on right) under the wing of a JAS 39 Gripen fighter, 2007 Active radar homing missile seeker. Active radar homing (ARH) is a missile guidance method in which a missile contains a radar transceiver (in contrast to semi-active radar homing, which uses only a receiver) and the electronics necessary for it to find and track its target autonomously.
Semi-active radar homing (SARH) is a common type of missile guidance system, perhaps the most common type for longer-range air-to-air and surface-to-air missile systems. The name refers to the fact that the missile itself is only a passive detector of a radar signal—provided by an external ("offboard") source—as it reflects off the target [1] [2] (in contrast to active radar homing, which ...
A radar speed gun, also known as a radar gun, speed gun, or speed trap gun, is a device used to measure the speed of moving objects. It is commonly used by police to check the speed of moving vehicles while conducting traffic enforcement , and in professional sports to measure speeds such as those of baseball pitches , [ 1 ] tennis serves , and ...
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For most of baseball's history, there were no commonplace methods to quantify how hard-hit a batted ball was — the only aspect of the ball's speed being tracked was how fast the pitcher threw it, measured using various evolutions of radar guns. In 2015, MLB introduced Statcast technology to all 30 of its ballparks, in part to track exit velocity.
A checked swing, sometimes also referred to as a check-swing or check swing, is a type of motion in baseball made by a batter. A checked swing is not an official term or call in baseball, such as a strike or ball, but is a common phrase used by commentators, fans, players, etc. to describe a situation in which a batter starts to swing the bat ...