In the proposed scheme, the received signal is demodulated
using binary phase shift keying (BPSK) demodulator.
The digital frequency signals in the upper part are the three sensors' signals and one synchronous signal in the transponder; and the digital frequency signals in the lower part are the demodulated
and shaped signals in the reader.
Taking I plane, for example, with the I vector [x.sup.I.sub.residual,i] of residual signal and the corresponding center line value a shared between the sender and the receiver, the secret message bits can be demodulated
(26), the k-th symbol's PS is demodulated
. Then according to the Maximum Likelihood (ML) decision rule, the polarization constellation point [P.sub.k] can be classified from [P.sub.k.sup.R].
A view of windows with values of demodulated
bits and decoded text of the message received.
In this method, first, a receiving AM radio signal containing HV noise is quadrature demodulated
. Next, a replica signal of the noise is generated by using the noise signal in the quadrature component.
Synthetic interferograms (closed fringe) are demodulated
using the FSD-HSO algorithm.
It should be noted that the demodulated
signal is generally contaminated by high-order harmonics and their amplitude dependencies on the measured phase signal amplitude are also nonlinear.
signal is amplified by an amplifier and digitized by the digitizer circuit.
represents the PRBS sequence with length of 1681; [PRBS.sub.rec](i, p) represents the new sequence with length of 1861 structured by the receiving sequence demodulated
by the OFDM demodulation; p = min(subcarrier [member of] Sliding Window) + 840 determines the starting position of the intercept data; when p = 0, there is no offset.
Vibration spectrums, waveforms and demodulated
data are all crucial when the health of pipeline equipment is being reviewed.