How do heat-seeking missiles work? do they work exactly like in the movies?
In: Technology
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 (whichever is greater), it can obtain a difference or deviation. The guidance subsystem uses deviations to generate corrective commands to drive the missile from a position where it is in to a position where it wasn’t. And, arriving at a position where it wasn’t, it now is.
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