Abstract
We consider data protection in radio channels of control–correction stations of the GLONASS/GPS local differential subsystem of the river on inland waterways of Russia under the influence of mutual and industrial noise. Based on the investigation of coefficients of the relative sensitivity to variations in the parameters and structure of signals and noise and on the required bit error rate of the element-by-element receiving of digital messages, we introduce estimate criteria for the noise-immunity and functional stability of radio channels. We provide methods to compute the noiseimmunity and functional stability of radio channels. We investigate the variational–parametrical sensitivity of the range size of a control–correction station to variations in parameters of the mutual and industrial noise, as well as its variational–functional sensitivity to variations in the frequency–time structure of the signal and the mutual noise. We find that the parameter variations in industrial noise provide the most sensitive influence on the size of the range of control–correction stations.
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Original Russian Text © I.A. Sikarev, S.F. Shakhnov, 2017, published in Problemy Informatsionnoi Bezopasnosti, Komp’yuternye Sistemy.
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Sikarev, I.A., Shakhnov, S.F. Data protection in radio channels of local differential satellite navigation subsystems. Aut. Control Comp. Sci. 51, 921–927 (2017). https://doi.org/10.3103/S0146411617080211
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DOI: https://doi.org/10.3103/S0146411617080211