Leica GPS1200+ Technical Reference Manual page 507

Geodetic satellite receiver

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Config...\Interfaces... - General

Position determination with satellites

appearing in all four quadrants.

In high dynamic GPS operations, this fact results in height variations of a few centimetres as

shown in the blue curve in the diagram below. Some GPS monitoring applications require a

stabilised height. By applying the filter, the height variations are smoothed and most of the

noise in the height component is eliminated.

Height determination with satellites

appearing in two quadrants.

b) Height variations

c) Smoothed height