Missile Knows Where It Is Because It Knows Where It Isn't
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#57 to #20 - anon id:1512544b
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ballistic means it is no longer under power and just moving under momentum. If you were close enough to fire the anti-anti-missile-missile you wouldn't need a ballistic one in the first place.
#28 to #20 - phinkles
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"sir, our anti anti-missile missile just shot itself down."
#24 to #20 - crazysciencehobo
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We use an anti anti-anti-missle-missle missle that houses a smaller anti anti-anti-anti-missle-missle-missle missle inside it to shoot down the impending anti anti-anti-missle-missle missle
All else fails, we employ our greatest weapon!
<--- {|
#29 to #24 - anon id:fe7a9d1a
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add in dummy warheads, dummy warhead sensors, and missile mounted anti-missile guns and you will actually be up to speed
#69 to #26 - anon id:335dfa65
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so basically this
#61 to #26 - itsbeowulftime
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And now in CopyPasta Format: The missile knows where it is at all times. It knows this because it knows where it isn't. By subtracting where it is from where it isn't, or where it isn't from where it is, it obtains a difference or deviation. The guidance subsystem uses deviations to generate corrective commands to drive the missile from a position where it is to a position where it isn't and arriving at a position that it wasn't, it now is. Consequently, the position where it is is now the position that it wasn't, and it follows that the position that it was is now the position that it isn't. In the event that the position that it is in is not the position that it wasn't, the system has acquired a variation. The variation being the difference between where the missile is and where it wasn't. If variation is considered to be a significant factor, it too may be corrected by the GEA. However, the missile must also know where it was. The missile guidance computer scenario works as follows: Because a variation has modified some of the information that the missile has obtained, it is not sure just where it is. However, it is sure where it isn't, within reason, and it knows where it was. It now subtracts where it should be from where it wasn't, or vice-versa. And by differentiating this from the algebraic sum of where it shouldn't be and where it was, it is able to obtain the deviation and its variation, which is called error.
#90 to #54 - jujuteux
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it's called a PID controller
Proportional
Integral
Derivative
it's also used for jets and hovercrafts, it permits them to have a very, very stable position/movement by using all or all designated propulsions systems, it kinda learns what propulsors to use and percentage of force is used for example:
X-----o---X-----X
X is a propeller, --- is the overall length or shape of the object, o is the center of gravity,
in this case we ant it to be perfectly horizontal, and roll is not included so we onl' control pitch, as you can see there is two propellers on the right and one on the left,
at first it will give the same force to each propellers that graduates by P, the force at wich he ramps up.
when the object will tilt since the propellers aren't symetrical, the PID program will substract by x the propeller's force in a linear fashion, the D, for Derivative is the derivativ time, it will try to predict the incoming error from the balancing by x seconds, once the object has tilted the other way he'll calculate the data from the propulsion reduce and predict how much to add to the propellers.
This program is also super good when your plane/hoover loses a propeller and have more than 2 for each sides, so the PID makes the force equal between them.
#107 to #104 - jujuteux
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With the PID you can make an absolutely diform whatever, strap to it some propellers that can lift it 2 times needed and t connect them to it and you get a perfectly stable thing that floats
#108 to #107 - jujuteux
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And if you put a brick on one of it sides, the PID will readjust the force so that it becomes stable in x seconds
#46 to #26 - anon id:76e7185f
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this ----ing video...I'm laughing but it hurts
Missile Knows Where It Is Because It Knows Where It Isn't
Source: https://funnyjunk.com/channel/cool-----/Antiballistic+missile+defense+2/muwwLzh/61
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