Patent ID: 7042390

Claim:
A method of providing the validation criteria including improved real time kinematics determination, comprising the steps of: determining a position estimate using an integrated method; determining validation criteria, comprising the steps of: tuning a stochastic model of observations; selecting a typical data set for baselines; setting validation criteria to preset values and executing an RTK process; summarizing RTK process results as a function of (1) fixing percentage over total resets and (2) wrong fix percentage over total fixes for each number of satellites, for each of ionosphere activity and environment type; derive validation criteria values for each preset reliability for each baseline having a different number of satellites; fitting a function of baseline length and time-to-try classified based on ionosphere activity and environment condition for each preset reliability; and selecting a validation criteria set based on ionosphere activity and environment type; enhancing ambiguity resolution of the position estimate by applying a quality control procedure using the derived validation criteria; and deriving a second position estimate based on the enhanced ambiguity resolution.