On BIQUE Procedures Applied to GPS Pseudorange Measurements

  title={On BIQUE Procedures Applied to GPS Pseudorange Measurements},
  author={Nicola Crocetto and Salvatore Ponte and Eufemia Tarantino},
Best-Invariant-Quadratic-Unbiased-Estimation (BIQUE) of the variance factors is used in this work to evaluate the adequacy, or goodness, of different stochastic models affecting GPS pseudorange measurements (assumed uncorrelated), using the linear Gauss-Markov functional model. Four different stochastic models of the observations are tested, verifying that incorrect results of the BIQUE estimates (i.e. negative variance components) imply large inaccuracies of GPS-derived user positions. Results… CONTINUE READING