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Variances of GPS Phase Observations: The SIGMA-ɛ Model (1999)

Hartinger, H. ; Brunner, F. K.

Springer

GPS solutions 2 (1999), S. 35-43

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ISSN: 1521-1886

Source: Springer Online Journal Archives 1860-2000

Topics: Architecture, Civil Engineering, Surveying , Geosciences

Notes: The noise term of GPS phase data can be calculated from the measured carrier-to-noise power density ratios (C/N0). The C/N0 values are used in the proposed SIGMA-ɛ model to calculate the variance matrix of double-differenced GPS phase data. Examples show the capability of this model to yield higher accuracies for GPS surveys than the use of the standard weighting scheme. Most importantly, the SIGMA-ɛ model allows the use of noisier phase data from very low elevation satellites to overcome poor satellite geometry problems. © 1999 John Wiley & Sons, Inc.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/PL00012765

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