SYSTEM FOR HIGH-ACCURACY LOCALIZATION OF OBJECTS- NAVIGATIONAL INFORMATION USERS BY NAVIGATIONAL RADIO SIGNALS WITH AUTHORIZED ACCESS IN REGIME OF DIFFERENTIAL CORRECTIONS Russian patent published in 2000 - IPC

FIELD: radio- navigational systems for localization of equipment of users using the regime of differential corrections in the navigational field of the GLONAS/GPS systems and for ascertaining of this navigational field in peculiar cases by supplementing it with the necessary quantity of geodetically supported navigation fixes. SUBSTANCE: system uses the additional redundancy of information at employment of ground navigational equipment. The required accuracy and reliability at localization by the radio-navigational system of the user remains at worsening of the geometric factor of the orbital groupings GLONAS and GPS. The above result is attained by the fact that in contradistinction to the prototype the system uses a geodetically supported rapid-navigational fix (fix), and namely, the GNE radiating simultaneously a signal similar to the navigation signal of the HKA comprising the differential correction computed by the KKC. In this case the WDOP decreases, which makes it possible to enhance the accuracy of localization of the user's equipment. The user's equipment may be installed both on aircraft and on ground objects, provided the reception of signals of the ground navigation equipment on the latter is ensured. The exclusion of influence at reception of signals of the ground navigation equipment and navigational signals of the HKA for the user's equipment is conditioned by frequency diversity of transmitted signals and by spatial selection, i.e. due to reception of these signals by two different antenna-feeder devices. The system for high-accuracy localization for information users in the regime of differential corrections has an authorized access. The reliability of high-accuracy localization is conditioned by monitoring of integrity of the navigational data due to introduction of integral monitoring of differential corrections, as well as by monitoring of the system hardware and software. EFFECT: enhanced accuracy and reliability. 3 dwg