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Special features of processing signals in the high-precision equipment GNSS

Keywords:

A.V. Grebennikov


Decrease of an error of measurement of pseudo-distance - one of the basic tasks, decided in the high-precision equipment, which works on the signals GNSS. In the article are examined the results of experimental studies of contemporary high-precision equipment GNSS, the basic sources of an error of measurement of pseudo-distance are determined. It is shown that the contemporary methods of processing signals NS in the navigation aid made it possible to decrease a random error of measurement of pseudo-distance to the units of centimeters with the measurement on the open signals GNSS. The improvement of the ephemeral- temporary guarantee of GNSS, the successes in the compensation for ionospheric and tropospheric error derived to the foreground such components of error as an error in the multiple-beam method and systematic error in the analog circuits of receiving equipment. Are examined the methods of decreasing the error in the multi-beam character for some applications of high-precision NS and the versions of the calibration of systematic error NS.
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