terrain contour matching

[tə′rān ′kan‚tu̇r ‚mach·iŋ] (navigation) A method of correcting errors in the inertial navigation system of a cruise missile, in which predicted terrain profile data stored in the missile's computer are compared with the terrain profile below the missile; calculated by subtracting the radar-altimeter-derived height of the missile above the terrain from the missile's altitude as derived from inertial navigator and barometric measurements. Abbreviated TERCOM.

单词	terrain contour matching
释义	terrain contour matching terrain contour matching [tə′rān ′kan‚tu̇r ‚mach·iŋ] (navigation) A method of correcting errors in the inertial navigation system of a cruise missile, in which predicted terrain profile data stored in the missile's computer are compared with the terrain profile below the missile; calculated by subtracting the radar-altimeter-derived height of the missile above the terrain from the missile's altitude as derived from inertial navigator and barometric measurements. Abbreviated TERCOM.
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