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The global navigation systems satellites signals partial powers measuring method
https://doi.org/10.32446/0368-1025it.2021-9-16-22
Abstract
Different consumers of global navigation satellite systems signals are able to receive different combinations of them. For this reason, it is important to monitor the signal parameters separately. The existing partial signals characteristics measuring methods are based on correlation processing, which leads to the loss of measurement information and signal averaging. A method for measuring the partial powers of navigation signals with frequency and code division was developed. The initial data are the total spectral power density measurements results, as well as information on the shape of the partial spectral power densities. A mathematical model of the sum of signals with overlapping spectra was investigated. It was shown that the signal powers were related as coefficients at partial spectral power densities. A system of equations for the coefficients is compiled, its solution is presented by the Tikhonov method. A practical study of the metrological characteristics of the method has been carried out. The research results will be used during monitoring the navigation spacecraft technical condition.
About the Author
A. S. Zavgorodnii
Russian Metrological Institute of Technical Physics and Radio Engineering
Russian Federation
Russian Federation
Aleksei S. Zavgorodnii
Mendeleevo, Moscow Region
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Review
For citations:
Zavgorodnii A.S. The global navigation systems satellites signals partial powers measuring method. Izmeritel`naya Tekhnika. 2021;(9):16-22. (In Russ.) https://doi.org/10.32446/0368-1025it.2021-9-16-22
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