FIELD: information technologies.
SUBSTANCE: in order to perform time synchronisation with application of spectral estimator, receiver receives estimate of frequency characteristic for symbols of pilot-signal received for each set of frequency subranges used to transfer pilot signal. Receiver performs spectral estimation of frequency characteristics estimates for various sets of subranges to produce measured time of arrival of transferred signal from transmitter. Spectral estimator determines dominant frequency component in estimates of frequency characteristics and produces measured time of arrival on the basis of this dominant frequency component. Time mismatch between measured time of arrival and required time of arrival is calculated, and filtered or non-filtered time mismatch is scaled with permanent or adjustable coefficient of reinforcement. Then time correction is generated on the basis of scaled time mismatch and with application of linear and/or non-linear functions. Time correction is sent to transmitter and is used to adjust time characteristics of transferred signal in transmitter.
EFFECT: improved accuracy of transmitted signal arrival time measurement.
39 cl, 10 dwg
