FIELD: radio engineering and communications.
SUBSTANCE: novel in method of multi-subscriber radio frequency identification is inclusion into composition of transponders installed on objects of identification of controlled phase changers. By antenna of device for reading transformed by frequency and amplitude-modulated high-frequency oscillations are secondary received and mixed with initial high-frequency oscillations, as a result, at output of mixer simultaneously several signals are obtained from transponders, wherein these combinatorial low-frequency components of difference between initial and transformed high-frequency oscillations are selected. Selected in each channel of reading device low frequencies are equal to shift frequencies introduced by every transponder in operational range of radio frequency identification system. Each of these low-frequency signals is demodulated and at output of amplitude detectors simultaneously several unique code sequences are obtained, thereby providing identification of several objects simultaneously.
EFFECT: method of multi-subscriber radio frequency identification can be used in organization of identifying several objects simultaneously.
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