DEVICE AND PROCESS OF RADIO POSITIONING Russian patent published in 2002 - IPC

FIELD: radio engineering. SUBSTANCE: system of satellite radio positioning incorporates satellites of global navigation system, for instance, GPS, which form distant signals Rn of global navigation system, geostationary satellites which relay distant signals Rn formed in navigation ground station and carrying auxiliary information A, as well as medium- orbit satellites which form distant signals Rm carrying regional auxiliary information RA transmitted from center of access to satellites. Regional auxiliary information RA is transmitted from regional systems of expansion of service zone. Navigation receiver receives distant signals Rq, Rm, Rn and computes values of ionospheric delays for each distant signal transmitted over two frequencies. Navigation receiver evaluates values of ionospheric delays for distant signals transmitted over single frequency using values of above-mentioned ionospheric delays as well as regional auxiliary information RA and auxiliary information A. For precise computation of coordinates and time navigation receiver employs distant signals with corrected ionospheric delays and corrected errors which are included in auxiliary information A and in regional auxiliary information RA which is achievable result of invention. EFFECT: raised precision of computation of coordinates and time. 25 cl, 6 dwg