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Ways of development of the noise-immune navigation receivers capable to measure object spatial orientation

Keywords:

V. N. Tyapkin – Ph.D. (Eng.), Associate Professor, Professor, Military Engineering Institute, Siberian Federal University. E-mail: tyapkin58@mail.ru
Yu. L. Fateev – Dr.Sc. (Eng.), Professor, Military Engineering Institute, Siberian Federal University. E-mail: fateev_yury@inbox.ru
D. D. Dmitriev – Ph.D. (Eng.), Associate Professor, Military Engineering Institute, Siberian Federal University. E-mail: dmitriev121074@mail.ru
E. N. Garin – Dr.Sc. (Eng.), Associate Professor, Vice-rector, Siberian Federal University. E-mail: mara1206@mail.ru
V. N. Ratushnyak – Senior Lecturer, Military Engineering Institute, Siberian Federal University. E-mail: oborona-81@yandex.ru


Modern receivers of global satellite navigation systems have a significant drawback – low noise immunity. Modernization of existing receivers by reducing the bandwidths of tracking systems , integral tracking a full set of signals from navigation satellites in all frequency bands , narrowband interference filtering (in the limit – harmonic ), providing direct entry in synchronization with the precision GLONASS signal (effective against narrowband interference), etc. makes it possible to provide functionality of navigation equipment at the consumer on the assumption that interference/signal ratio at the input of the receiving antenna is no more than 60...65 dB. Further improvement of navigation consumer equipment immunity to 80...85 dB is possible only with the application of spatial methods of interference suppression. The article describes the variants of construction of angle measuring system with functions of spatial selection of interference on the basis of the same antenna system.
References:

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