Systems and methods are provided for complementary navigation devices with
various integrated positioning functionality. The navigation method
includes providing a first navigation device. The first navigation device
includes a triangulation positioning functionality. The method includes
providing a second navigation device adapted to communicate with the
first navigation device. The second navigation device includes one or
more dead reckoning positioning components. The method further includes
resolving a position of the first and the second navigation devices.
Resolving the position includes using the one or more dead reckoning
positioning components in complement to the triangulation positioning
functionality to determine the position when the triangulation
positioning functionality is degraded.