FIELD: radio positioning.
SUBSTANCE: invention relates to the field of radio positioning technology and can be used, for example, to control the movement of moving objects. In the claimed method, two continuous highly stable low-frequency oscillations are generated in the measuring station, one with a constant frequency, the other with a variable frequency, with the help of which the measuring station is configured to receive the signals of the required transponder. At the same time, high-frequency oscillations are generated in the measuring station, the frequency of which is known, and its value is changed discretely in time. At the same time, high-frequency vibrations are emitted through the transmitting antenna of the measuring station. Further, these vibrations are received in all transponders of the system and the frequency of the received high-frequency vibrations is shifted to a known low frequency, that is individual for each transponder. After that, re-emission, secondary reception in the measuring station and isolation of the combinational components of the difference are carried out, followed by measurement of the phase difference of these combinational components and signals from local low-frequency generators. As a result, the required number of phase differences are obtained, with the help of which the distances from the antennas of the measuring station to the antennas of each transponder located within the radius of the system are determined.
EFFECT: simplification of the design of the measuring station while providing signal processing of several transponders of the system.
1 cl, 1 dwg
Authors
Dates
2022-04-04—Published
2021-05-08—Filed