The real part, or the in-phase component
, is mainly affected by the magnetic permeability of the subsoil; the imaginary part, also called the out-of-phase or quadrature component, mainly by the electrical conductivity.
Calculate the in-phase component
of reference supply current
3, for 1[less than or equal to]i[less than or equal to][N.sub.t], the symbol-wise MSE metric [d.sub.i] of symbol [x.sub.i] can be decomposite into two tuples ([d.sub.i,I.sup.2], [d.sub.i,Q.sup.2]), where [d.sub.i,I.sup.2] and [d.sub.i,Q.sup.2] denote the in-phase component
and quadrature metrics respectively and [d.sub.i] = [d.sub.i,I.sup.2] + [d.sub.i,Q.sup.2].
As a particular case, the following are noted: (i) p = 0 denotes the power balance condition; (ii) p = 1 implies that the all signal power is concentrated in the in-phase component
; (iii) p = -1 implies that all the signal power is concentrated in the quadrature component.
Then, the replica signal is subtracted from the AM radio signal containing the noise of the in-phase component
. We construct a prototype of the radio receiver system based on this method and demonstrate that the system can reduce the HV noise superimposed on the AM radio signal by more than 20 dB.
Finally, a lock-in amplifier (Stanford Research Systems, model SR530) was used to measure the phase shift between the photocurrent detected by the photodiode with respect to the oscillating rf magnetic field, and the in-phase component
and the quadrature component.
The signal is resolved into its in-phase and quadrature components, with the in-phase component
(in keeping with the definition of [[phi].sub.c](t)) aligned, co-linear with the interferer.
This current consists of both an in-phase component
(conductance) and an out-of-phase component (capacitance).
where G[prime], G[double prime], [Eta][prime], and [Eta][double prime] are storage modulus, loss modulus, dynamic viscosity, and the in-phase component
of dynamic complex viscosity, respectively.
The RF spectrum for the in-phase component
at cyclic prefix of 1/32 where the effective area is 150[micro][m.sup.2] after OFDM modulation and demodulation are shown in Figures (6,7), the power of the RF is measured at -10 dBm after the OFDM modulation and at -39dBm after the OFDM demodulation.
It is observed from equation (4) that the system performance is related to the expected signal, the in-phase component
of the CCI, and the quadrature component of the CCI.