FIELD: measurement equipment.
SUBSTANCE: method implies procedure of synchronisation on the signal carrier frequency, detection of the section of the signal carrier and determination of its boundaries with the specified accuracy. Further the phase sampled information is analysed in respect to the reference oscillation of k-frequency at the specified time interval for sliding window monitoring and the signal is detected. Numbers of the initial and end phase samples, which correspond to the beginning and the end of the interval, are recorded. The analysis window duration is less than the sending duration. One frequency channel is analysed. Phase samples for other reference frequencies are defined on the basis of the initial phase sample by introducing necessary corrections. Each of these phase samples is analysed for signal delivery by sliding window method. This procedure is repeated many times along with the reduction of the analysis window duration. The device for the method implementation comprises an antenna-feeder device, a phase sample generator, a memory unit, a frequency channel generation unit, a unit for quadrature processing of signals, a unit for output data processing. The unit for quadrature processing of signals consists of the first and the second generators of quasisine and quasicosine channels, the first and the second adders, a weight function creating unit, two multipliers.
EFFECT: reducing time for signal reception and processing, improved accuracy.
3 cl, 5 dwg
Authors
Dates
2014-01-20—Published
2012-05-24—Filed