Ground-penetrating radar (GPR) systems with multiconcurrent sampling receivers can rapidly acquire dense multioffset GPR data, which are not feasible using typical common-offset (CO) a single fixed offset transmitter-receiver pair. Multioffset data from these new receiver have the potential to be used create detailed subsurface velocity models and enhanced reflection sections. These important f...

IBIS-AMI modeling for high-speed serial link systems becomes the de facto standard in the industry. The evolution of IBIS-AMI modeling standard started from a pure THRU channel modeling for NRZ signaling and expanded to the inclusion of crosstalk aggressors, to links containing repeaters, to back-channel transmitter (TX) and receiver (RX) equalizer training process, to the modeling of PAM4 and ...

A multicarrier code division multiple access (MC/CDMA) system, which is being considered for the implementation of high data rate system in the future, offers robustness to multipath fading and high spectral efficiency. However, carrier frequency offset between the transmitter and the receiver degrades system performance. In this paper, the effects of frequency offset are theoretically analyzed...

Fading is a fundamental problem in wireless communication. However Space time block code scheme is suggested to overcome this problem. In the paper various combination of transmit and receive antenna was considered, a mathematical model was driven and applied using simulation. The relation between signal to noise ratio and bit error rate was plotted. From results it is noted that the receiver d...

In direct-conversion orthogonal frequency division multiplexing (OFDM) receivers, the impact of frequency-dependent I/Q mismatch (IQ-M) with carrier frequency offset (CFO) must be considered. A preamble-assisted estimation is developed to circumvent the frequencydependent IQ-M with CFO. The results of a simulation and an experiment show that the proposed method could provide good estimation eff...

In this study the gesture duration and articulator velocity in consonant-vowel-transitions has been analysed using electromagnetic articulography (EMA). The receiver coils where placed on the tongue, lips and teeth. We found onset and offset durations which are statistically significant for a special articulator. The duration of the offset is affected by the degree of opening of the following v...

Irregularly and sparsely sampled seismic data that has been shot with a predominant azimuth for long offsets can be completely reconstructed. Our method uses reposting along receiver lines to exact crossline positions, followed by least squares reconstruction in the midpoint-offset domain. This reconstruction scheme has been applied to a 3D marine dataset from the North Sea. Various aspects and...

In this paper, we provide a simple closed-form expression of the effective signal-tonoise ratio (SNR) for orthogonal frequency division multiplexing (OFDM) performance under the combined effect of synchronization errors (i.e. phase noise, carrier frequency offset, Doppler spread, sampling frequency offset, and timing jitter), transmitter I/Q imbalance, receiver I/Q imbalance, and amplifier nonl...

In this study the effects of machining parameters such as shearing speed, feed rate, tool diameter and machining depth on different milling strategies i.e. 3D offset, spiral, raster and radial to produce the convex surface made of epoxy/glass composites is investigated. The effects of mentioned strategies on output parameters such as surface roughness and milling removal rate is also studied. T...