A system for establishing a vehicle parameter including collecting signals
from a satellite and deriving a reference vehicle parameter from the
satellite signals. Signals from a vehicle sensor are also collected and
an estimated vehicle parameter is derived therefrom. Once the satellite
signals and the estimated vehicle parameter signals are collected,
parameters for a correction algorithm are generated and thereafter, the
correction algorithm is applied to vehicle sensor signals to generate a
corrected vehicle parameter or to generate a vehicle tire status
parameter.