Figure 94: Feasible Position Solutions From Two Satellites; Figure 95: Feasible Position Solutions From Three Satellites - Applanix POS MV V5 Installation And Operation Manual

Figure 95 shows how the range of feasible position solutions reduces still further when three satellites are
used to resolve the carrier phase ambiguities.
In practice, the operation is more complex than the simple explanation above. This is for the following
reasons:
• The radius of the circle of uncertainty in knowing the position of the GNSS antenna is usually
much larger than the simple examples shown above. There are therefore many more points
within the circle that could be feasible true positions.
• Although the illustrations above show the situation in two dimensions, the actual computation
performed by POS MV involves the resolution of carrier phase ambiguities in three dimensions.
Copyright © Applanix Corporation, 2017
POS MV V5 Installation and Operation Guide

Figure 94: Feasible Position Solutions from Two Satellites

Figure 95: Feasible Position Solutions from Three Satellites

Feasible positions
Feasible positions
Theory
of Operation
B-25