Comparison of the accuracy of estimating the delay time of navigation signals by means of using different models of tropospheric refractivity profile

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Authors: Zaharov F. N., Krutikov M. V.

Annotation: The paper deal with the accuracy of navigation signals` tropospheric delay estimation. The factors, which affect the estimation accuracy are discussed. To make it clear that random fluctuations of refraction coefficient in clouds and precipitations are major contributors of delay definition error. The error in determining the delay time of the signal in the troposphere is estimated. The error is arising from difference between real and simulated vertical profiles of the refraction coefficient.

Keywords: pseudorange, navigation signal delay, troposphere, refraction coefficient, cloud, precipitation