X-Parameter Measurement of Pulse-Compression Nonlinear Transmission Lines by Ming Li, Rony E. Amaya, Robert G. Harrison, N. Garry Tarr

“…A specially configured Nonlinear Vector Network Analyzer (NVNA) was used to measure the X-parameters in the frequency-domain, and then the measured data was transformed into a nonlinear time-domain waveform. The results show both rise-time and fall-time reduction (double-edge compression) as expected and indicate that this newly developed X-parameter method implemented with an NVNA could correctly predict NLTLs' pulse-compression performance.…”
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Advanced Techniques and Antenna Design for Pulse Shaping in UWB Cognitive Radio by Lise Safatly, Mohammed Al-Husseini, Ali El-Hajj, Karim Y. Kabalan

“…The Parks-McClellan algorithm is employed, a neural network is trained, and a reconfigurable band stop filter is designed to generate an adaptive waveform with nulls at specific frequencies. Simulations, measurements, and analysis show that each generated UWB pulse has remarkable advantages in the frequency utilization, spectrum avoidance, and hardware implementation.…”
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Antenna Polarization Optimization for Target Detection in Non-Gaussian Clutter by Xu Cheng, Yong-zhen Li, Xue-song Wang

“…By employing the simulation, we demonstrate that the polarization waveform optimization can bring the significant performance gain on target detection as compared to the conventional full-polarization approach. …”
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A Single DC Source Generalized Switched Capacitors Multilevel Inverter with Minimal Component Count by Kasinath Jena, Dhananjay Kumar, B. Hemanth Kumar, K. Janardhan, Arvind R. Singh, Raj Naidoo, Ramesh C. Bansal

“…This paper presents a new single-source switched capacitor- (SC-) based multilevel inverter (MLI) design with a boosting potential of three times the supply voltage. To produce a waveform with seven output voltage levels, the suggested switching capacitor inverter consists of eight switches, single diode, and two capacitors. …”
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Automatic Classification of Microseismic Signals Based on MFCC and GMM-HMM in Underground Mines by Pingan Peng, Zhengxiang He, Liguan Wang

“…Therefore, here we present a new method for automatic classification of microseismic signals based on the Gaussian Mixture Model-Hidden Markov Model (GMM-HMM) by using only Mel-frequency cepstral coefficient (MFCC) features extracted from the waveform. The detailed implementation of our proposed method is described. …”
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On the Efficient Broadcasting of Heterogeneous Services over Band-Limited Channels: Unequal Power Allocation for Wavelet Packet Division Multiplexing by Maurizio Murroni

“…In wavelet packet division multiplexing (WPDM), the message signals are waveform coded onto wavelet packet basis functions. …”
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Application of Acoustic Emission on the Characterization of Fracture in Textile Reinforced Cement Laminates by J. Blom, J. Wastiels, D. G. Aggelis

“…Preliminary results show that AE waveform parameters like frequency and energy are changing during loading, following the shift of fracturing mechanisms. …”
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Investigating the Pavement Vibration Response for Roadway Service Condition Evaluation by Zhoujing Ye, Yang Lu, Linbing Wang

“…The acceleration extrema, the time-domain signal waveform, the frequency distribution, and the sum of squares of Fourier amplitude can be potential indexes for evaluating roadway service condition. …”
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Computational Simulation and Modeling of Freak Waves Based on Longuet-Higgins Model and Its Electromagnetic Scattering Calculation by Gengkun Wu, Chuanxi Liu, Yongquan Liang

“…In addition, by comparing the target wave spectrum and the freak wave measured in Tokai of Japan from the perspective of B-F instability and spectral peakedness, it is proved that the waveform of the simulated freak waves can not only maintain the spectral structure of the target ocean wave spectrum, but also accord with the statistical characteristics of the wave sequences. …”
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Nonlinear Vibrations of FGM Cylindrical Panel with Simply Supported Edges in Air Flow by Y. X. Hao, W. Zhang, S. B. Li, J. H. Zhang

“…The bifurcations, Poincare section, waveform, and phase plots are presented.…”
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Regenerative Braking Energy Flow Control Algorithm for Power Grid Voltage Stabilization in Mobile Energy Storage Systems by Ivan Župan, Viktor Šunde, Željko Ban, Branimir Novoselnik

“…The method is based on an algorithm that identifies the need to utilize the energy of the SC ESS depending on changes in the voltage of the power grid caused by the driving of other nearby tram vehicles. The waveform of the current flowing into or out of the SC ESS during this control is determined based on Pontryagin’s minimum principle, which optimizes the minimum change in the voltage level at the pantograph and the minimum temperature of the supercapacitor. …”
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Compensation of active filter using p-q theory in photovoltaic systems by Farzane Soleimani Rudi, Mohammad Naser Hashemnia

“…Moreover, the sinusoidal waveform of the three-phase grid currents demonstrates the effectiveness of the proposed controller. …”
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Geometrical-Feature-Preserving Adjoint Tomography of Near-Surface Structure with Seismic Early Arrival by Chao Zhang, Cheng Li, Jian Cai

“…Early arrival waveform inversion (EWI) is an essential approach to obtaining velocity structures in near-surface. …”
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Blasting Vibration Signal Transform in Geotechnical Engineering Applied HHT and S Transform for Time-Frequency Analysis by Ke Man, Zhifei Song, Xiaoli Liu, Gaofeng Song

“…Furthermore, the HHT method has much more adaptability and is superior to S transform in the analysis of nonstationary signals. In advance, the waveform curve and power spectral density of each detonator are extracted, which indicates that it is not scientific to use different segment detonators for the same circle of the auxiliary hole. …”
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The Vibration Characteristics of Ground of Rock Blasting in Silt-Rock Strata by Tao Yin, Chuanbo Zhou, Changqing Zheng, Jugen Fu, Ziru Guo

“…According to the measured data of blasting vibrations at the sites, the waveform duration of vibration acceleration and the distribution characteristics of dominant frequency of vibration velocity were analyzed, the energy characteristics of vibration velocity were researched by wavelet analysis, and the attenuation laws of vibration velocity were studied by dimensional analysis (DA). …”
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A Volume Challenge Reveals the Diagnosis of Pediatric Restrictive Cardiomyopathy by Elyssa Cohen, Conor P. O’Halloran, Philip T. Thrush, T. Marsha Ma, Paul Tannous

“…A diagnosis remained elusive, so a 500 mL volume challenge was performed, which unmasked right and left ventricular waveform transformations to reveal the pathognomonic “square root sign” of restrictive cardiomyopathy with concordant RV/LV respirophasic variation. …”
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Probabilistic Assessment of Damage from Same Shock Response Spectra due to Variations in Damping by Arup Maji

“…This paper attempts to quantify this deficiency as well as propose a simple method of capturing damping from shock waves that can allow the original waveform to be more accurately reconstructed from the SRS. …”
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Hemodynamic Correlates of Late Systolic Flow Velocity Augmentation in the Carotid Artery by Kevin S. Heffernan, Wesley K. Lefferts, Jacqueline A. Augustine

“…The contour of the common carotid artery (CCA) blood flow velocity waveform changes with age; CCA flow velocity increases during late systole, and this may contribute to cerebrovascular disease. …”
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Time-Frequency Characteristics of Acoustic Emission Signals on Water-Bearing Sandstone Specimen Subjected to Conventional Uniaxial Compression by Hui-qiang Duan, Ming-tao Gao, Hong-yu Yan

“…But, the two-dimensional frequency spectrum structure of AE waveform signals shows that the closer to failure, the more the number of the frequency spectrum structure peaks. (4) The energy of AE signals is mainly concentrated in the first three frequency bands. …”
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Advantages of Shear Wave Seismic in Morrow Sandstone Detection by Paritosh Singh, Thomas Davis

“…Here, we have performed full waveform modeling study to understand the Morrow sandstone signatures on compressional wave (P-wave), converted-wave (PS-wave) and pure shear wave (S-wave) gathers. …”
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