Aerospace Instrument-Making Annotation << Back Radiooptics positioning systems in control problems for ground- located objects based on mobile service infrastructure communication Grigorievsky V.I. Grigoryevskaya M.V. Sadovnikov V.P. Yakovlev Yu.O. The article considers the problem of constructing an autonomous positioning system of objects using the infrastructure for mobile communications (repeater towers, cell phones) without the constant attraction of satellite navigation systems. It is shown that the use of dual-wavelength optical line phasing for the time (phase) synchronization of transmitters spaced towers gives accurate positioning of objects up to 10…20 mm. It is necessary to use additional control deviation peaks relay towers and measuring meteorological parameters both at the location of towers, and at the location of the controlled object. The paper is numerically investigated the dependence of the difference between electrical and optical length of the channel propagation from humidity, pressure and temperature. It is also shown that if, along with the radio frequency, repeater tower will emit a modulated optical signals, by measuring the length along with the electrical and optical length, the positioning of the object can be done with an accuracy of about 1 mm. Such systems may be useful in the case of deformation measurements in the unavailability of satellite positioning systems in case the need for greater efficiency of data retrieval. Key words: positioning, relay tower, mobile communications, laser, humidity,pressure,temperature. Contacts: E-mail: vig248@ire216.msk.su Pp. 29-35.