Patent number: 5331329
Abstract: A method for radio navigation positioning with the aid of satellites, in accordance to which a radio navigation signal is generated on board the satellites (1) by modulating the carrier frequency (f.sub.c) with an assemblage of signals including a pseudorandom sequence, the navigation data, and a synchronization code, and the object-users (2) determine their positioning, speed of mation and a correction factor to the time scale during reception and processing of the radio navigation signal. According to the invention, each satellite or pair of mutual opposite satellites on an orbital plane are ascribed individual carrier frequencies (f.sub.cj, f.sub.ck) and use a common to all satellites (1) pseudorandom M-sequence of truncated length, dibit coding of navigation data symbols and synchronization code of shortened repetition period and increased number of symbols.
Type:
Grant
Filed:
September 29, 1992
Date of Patent:
July 19, 1994
Assignee:
Nauchno-Issledovatelsky Institut Kosmicheskogo Priborostoenia
Inventors:
Nikolai M. Volkov, Stanislav S. Glazov, Nikolai E. Ivanov, Mikhail A. Ljubimov, Vadim A. Salischev, Boris G. Sergeev, Valery V. Tjubalin, German M. Alyabina, deceased, Valery F. Kovalenko, deceased, by Tatyana P. Shishkova, administrator, Sergei V. Kovalenko, administrator, Nikita V. Kovalenko, administrator, Nadezhda V. Kovalenko, administrator