Generalized frequency division multiplexing (GFDM), windowed cyclic prefix circular offset quadrature amplitude modulation (WCP-COQAM) and orthogonal frequency division multiplexing (OFDM) are among the candidate 5G modulation formats. In this study, we present additional results for the OOBE comparisons between OFDM, GFDM and WCP-COQAM under equal or unequal spectral efficiency conditions for ...

The magnetic method is one of the very few nondestructive testing (NDT) techniques that provide possibility to conduct area tests reinforced concrete (RC) structures in a fast, cheap, and straightforward way. This paper aims present new approach simultaneous identification rebars’ diameter, alloy class, thickness cover tested with this method. Since rebars from different manufacturers may have ...

This paper analyzes the bit-error-rate (BER) performance of filter bank multicarrier systems with offset quadrature amplitude modulation (FBMC-OQAM) in the presence of phase offset. We consider that the FBMC intrinsic-interference has a Gaussian probability distribution, and we derive the BER analytical expressions for multilevel modulation (M-OQAM) over Rayleigh flat fading channels. Analytica...

In the Bulgarian Black Sea shelf, several gas fields have been discovered in Maastrichtian–Paleocene sediments to date. this study, amplitude versus offset analysis (AVO) was carried out, and extended elastic impedance (EEI) also used, predict fluid lithology properties. Thus, these special cases, AVO (or reflection angle) can significantly de-risk existing Paleocene prospects allow focus on Mi...

This paper presents the two basic comparison techniquesThe amplitude and phase comparisons, used in power system protection and control. Phasor diagrams were used to discuss their relationships and circuit diagrams were modeled for the description of their operations. The general expression for impedance, Mho, positive offset and negative offset Mho characteristics were developed. At a stage si...

In this paper we introduce a new method of carrier frequency offset estimation for Orthogonal Frequency Division Multiplexing (OFDM) communication systems. The method uses one or more pairs of adjacent subcarriers within an OFDM symbol. The pairs of subcarriers are modulated with equal amplitude and opposite polarity. In the absence of frequency offset, the received subcarrier pairs also have e...

Differences between the cognitive processes involved in word reading and picture naming are well established (e.g., visual or lexico-semantic stages). Still, it is commonly thought that retrieval of phonological forms is shared across tasks. We report a test of this second hypothesis based on the time course of electroencephalographic (EEG) neural activity, reasoning that similar EEG patterns m...

SUMMARY Seismic inversion of amplitude versus offset (AVO) data in viscoelastic media can potentially provide high-resolution subsurface models seismic velocities and attenuation from offset/angle gathers. P- S-wave quality factors (Q), whose inverse represent a measure attenuation, depend on reservoir rock pore fluid properties, particular, saturation, permeability, porosity, viscosity litholo...

Synthesis is a process for producing reflection responses from more general sources or from prescribed incident waves by combining common-shot data gathers. Synthesis can provide survey-wide data sets, similar in that regard to common-offset data gathers, but with the added advantage that each synthesized data set is a solution to a single wave equation. A common-offset data set does not have t...