V.S. Bakholdin - Ph. D. (Eng.), Associate Professor, Department of Radiolocation and Radionavigation, Mozhaysky Military Space Academy (Saint Petersburg). E-mail: bakholdin_vs@mail.ru

Phase measurements are widely used in navigational hardware of customers for obtaining of pinpoint accuracy of navigational determinations and orientation determination. There is a problem of finding of an unknown integral number of lengths of the waves laid in measured distance. Determination of orientation of highly dynamical objects demands an ambiguity solution in real time. Presence of two carrier frequency allows to synthesise the difference wave length. The magnification of a range of resolution of ambiguity is attained by application of mathematical theory of numbers and a method of not aliquot scales. The ratio of periods of not aliquot scales represents a simple fraction. Two frequency algorithm of resolution of ambiguity for system GLONASS is developed and taken out a license. The algorithm is developed for three carrier frequency with a large range of resolution of ambiguity. Functionability of the offered algorithms is confirmed by mathematical simulation. In modernization system GLONASS it is offered to radiate frequencies of 1602,18 MHz, 1246,014 MHz and 1203,048 MHz. Usage of the offered frequencies to implement algorithms of resolution of ambiguity in ranges of 6,9 m and 48,8 m.

 

1. GLONASS. Principy postroenija i funkcionirovanija / Pod. red. A.I. Perova, V.N. KHarisova. M.: Radiotekhnika. 2010.
2. Ponomarev V.A., Ponomarev A.V., Ponomareva T.M., Bakholdin V.S. Razreshenie neodnoznachnosti v informacionno-izmeritelnykh mnogoshkalnykh priborakh i sistemakh. SPb.: VIKU. 2001.
3. Pat. № 2157547 RF. Sposob razreshenija neodnoznachnosti fazovykh izmerenijj.  Ponomarev V.A., Bakholdin V.S. / Prioritet ot 24.09.1999.
4. Zabelin A.V. Grafo-analiticheskijj raschet metrologicheskikh kharakteristik metoda sovpadenija drobnykh chastejj porjadka interferencii dlja mnogochastotnojj interferometrii // Vestnik MGTU «Stankin». 2009. № 3(7). S. 51−55.
5. Pat. № 2213979 RF. Sposob razreshenija neodnoznachnosti fazovykh izmerenijj v sisteme GPS. Ponomarev V.A., Bakholdin V.S. / Prioritet ot 22.12.2000.
6. Dubinko JU.S., Bakholdin V.S. Razreshenie neodnoznachnosti fazovykh izmerenijj v trekhchastotnojj navigacionnojj apparature potrebitelejj sputnikovykh radinavigacionnykh sistem // Trudy IPA RAN. 2009. № 20. S. 418−422.
7. Fateev V.F. Vvedenie v reljativistskuju teoriju radionavigacii i sinkhronizacii. L.: VIKI. 1988.
8. Globalnaja navigacionnaja sputnikovaja sistema GLONASS // Interfejjsnyjj kontrolnyjj dokument. Navigacionnyjj radiosignal v diapazone L3 s otkrytym dostupom i kodovym razdeleniem (redakcija 1). M. 2011.