Interesting, but while reading, I couldn't help hearing this in my headHowever Stormshadow doesn't actually actively "map" anything and it does something different instead, using a passive system which can't be detected/jammed etc. Basically the missile's route is pre-planned with a series of waypoints which are compared to the IN/GPS location being reported by the missile during flight, so the missile knows where it is and where its going. Then it uses a built-in rad-alt to detect its own height directly above the terrain (combined with GPS height) which it then compares to a terrain height database stored within the Missiles Main Computer (this software is called TERPROM) so now it knows where it is, how high it is and finally how high the terrain is around it and it's done all of this passively without being detected, unlike a Tomahawk with its radar system.

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