A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL.
The file type is application/pdf.
Filters
Nonlinear Modeling and Analysis on Concurrent Amplification of Dual-Band Gaussian Signals
2013
IEICE transactions on electronics
Preserved Fulltext
We devise a novel method for modeling the PA amplifying dual-band signals. ...
This increases nonlinear distortion in its wideband power amplifier (PA) because the PA needs to concurrently amplify multi-band signals. ...
Using the validated model, we then perform a theoretical analysis and simulation that show the nonlinear effect on concurrent amplification of OFDM signals. ...
doi:10.1587/transele.e96.c.1254
fatcat:bj66lhhf35e7pjytyuncpqnqke
Nonlinear-Stability Analysis of Higher Order $\Delta$ –$\Sigma$ Modulators for DC and Sinusoidal Inputs
2008
IEEE Transactions on Instrumentation and Measurement
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
The present work that exists on predicting the stability of ∆-Σ modulators is confined to DC input signals and unity quantizer gains. This poses a limitation for numerous ∆-Σ modulator applications. ...
The proposed research work gives the stability curves for DC, sine, and dual sinusoidal inputs for any value of the quantizer gain. ...
In this paper, the stability analysis based on the noise-amplification curve is accomplished using the DF method for DC single-and dual-tone sinusoidal inputs for nonunity quantizer-gain values. ...
doi:10.1109/tim.2007.911640
fatcat:4eehjlsj4bgsbk5xm37ieh7dli
RF-PA Modeling of PAPR: A Precomputed Approach to Reinforce Spectral Efficiency
2020
IEEE Access
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
A nonlinear PA modeling using cubic-spline basis is used to describe the amplification curve, and also to proceed to carry out spectral analysis of the signal and show that the models are in close agreement ...
the polynomial basis function of the m-th branch for the dual-band PA model. ...
His research interests include analog signal processing, design of integrated circuits, multi-objective optimization, chaotic oscillators, symbolic analysis and analog/RF and mixed-signal design automation ...
doi:10.1109/access.2020.3012610
fatcat:qmnyiausbffylhx75wvakknqcu
Subsampling Receivers with Applications to Software Defined Radio Systems
[chapter]
2012
Data Acquisition Applications
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL.
The file type is application/pdf.
case) are subsampled and may overlap with the signal of interest. ...
In both nonlinear and multi-band cases, the data acquisition involved in the subsampling receiver has additional limitations, because the harmonics (nonlinear case) and other carrier frequencies (multi-band ...
The authors also acknowledge Alberta Innovates -Technology Futures (AITF), the Natural Sciences and Engineering Research Council of Canada (NSERC), and the Canada Research Chairs (CRC) Program for their ...
doi:10.5772/49959
fatcat:gmxg57aienc4fcosz24niaujfa
Low complexity predistortion and equalization in nonlinear multicarrier satellite communications
2015
EURASIP Journal on Advances in Signal Processing
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
In this scenario, a careful investigation of the resulting power efficiency is essential as amplification is nonlinear, and multicarrier signals exhibit enlarged peak-to-average power ratio. ...
Clearly, in such payloads, the signal processing carried out on the ground can be updated based on technological advances in the course of the lifetime of the satellite. ...
Multicarrier (MIMO) signal DPD has been studied in terrestrial applications for multiple channel transmitters [22, 23] and concurrent dual band amplifiers [24] . ...
doi:10.1186/s13634-015-0215-0
fatcat:gaqkpg6e3vamzfv7wfghivaxqq
Speech Enhancement Algorithm Based on Super-Gaussian Modeling and Orthogonal Polynomials
2019
IEEE Access
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
Third, two stages of nonlinear and linear estimators based on the minimum mean square error (MMSE) and new models for speech and noise are derived to estimate a clean speech signal. ...
In most speech enhancement algorithms, the speech signal is characterized by Gaussian or super-Gaussian models, and noise is characterized by a Gaussian prior. ...
Meanwhile, the nonlinear MMSE estimator (NBSE) is based on the statistical analysis notion, which requires knowledge regarding speech and noise probability distributions [3] . ...
doi:10.1109/access.2019.2929864
fatcat:xy4ofbk45zgm5oybsemf2qyfm4
Reduction of Radiometric Miscalibration—Applications to Pushbroom Sensors
2011
Sensors
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2015; you can also visit the original URL.
The file type is application/pdf.
To objectively evaluate the performance of the new approach, the technique was applied to a variety of commonly used image examples and to one simulated and miscalibrated EnMAP (Environmental Mapping and ...
The analysis of hyperspectral images is an important task in Remote Sensing. ...
Acknowledgements This work was supported by the MoLaWa project funded by the German Federal Ministry of Economics and Technology (BMWi) in the framework of the program Zentrales Innovationsprogramm Mittelstand ...
doi:10.3390/s110606370
pmid:22163960
pmcid:PMC3231449
fatcat:xkqw63kcs5dwngr4hrnutcdiam
Analysis of Noncoherent ASK Modulation-Based RF-Interconnect for Memory Interface
2012
IEEE Journal on Emerging and Selected Topics in Circuits and Systems
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2013; you can also visit the original URL.
The file type is application/pdf.
Both analysis and tested results prove that the performance of the proposed dual-band (RF+baseband) interconnect system is not limited by thermal noise interference. ...
Index Terms-Dual-band signaling, inductive coupling, memory interface, noncoherent amplitude shift keying modulation, RF-interconnect, simultaneous bidirectional communication. ...
His research interests include synthesis of VLSI circuits and systems, programmable systems, novel computer architectures, nano-systems, and highly scalable algorithms. ...
doi:10.1109/jetcas.2012.2193511
fatcat:wna6egwupfduva3znivup6loji
Iterative learning cascaded multiclass kernel based support vector machine for neural spike data classification
2015
2015 IEEE Conference on Computational Intelligence in Bioinformatics and Computational Biology (CIBCB)
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL.
The file type is application/pdf.
In this paper, we develop an iterative learning framework based on multiclass kernel support vector machine (SVM) for adaptive classification of neural spikes. ...
We construct cascades of such (partial) approximations and use them to obtain the modified objective function, which offers high accuracy, has small kernel matrices and low computational complexity. ...
This research was supported in part by the European Union and the Dutch government as part of the CATRENE program under Heterogeneous INCEPTION project. ...
doi:10.1109/cibcb.2015.7300278
dblp:conf/cibcb/ZjajoL15
fatcat:s5zd4wtwarciph6gr2f33xh7da
2020 Index IEEE Transactions on Circuits and Systems II: Express Briefs Vol. 67
2020
IEEE Transactions on Circuits and Systems - II - Express Briefs
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2021; you can also visit the original URL.
The file type is application/pdf.
Sait, H., Design of a Single Chip PWM Driver Circuit for Inverter Welding Power Source; TCSII April 2020 720-724 Jacobsson, S., see Castaneda, O., TCSII May 2020 891-895 Jafari, E., and Binazadeh, T ...
Y., and Mak, T., A Fast-Transient Response Digital Low-Dropout Regulator With Dual-Modes Tuning Technique; 2943-2947 Qian, X., see Yi, X., TCSII Nov. 2020 2402-2406 Qiao, S., see You, H., TCSII Dec. ...
., +, TCSII April 2020 670-674
Fourier analysis
Fourier Analysis of Signal Waveforms in An Ideal Concurrent Dual-Band
Class-D Power Amplifier. ...
doi:10.1109/tcsii.2020.3047305
fatcat:ifjzekeyczfrbp5b7wrzandm7e
Poly-harmonic Analysis of Raman and Mandelstam-Brillouin Scatterings and Bragg Reflection Spectra
[chapter]
2015
Advances in Optical Fiber Technology: Fundamental Optical Phenomena and Applications
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL.
The file type is application/pdf.
The chapter is devoted to applications and construction principles of poly-harmonic (twofrequency or four-frequency) cw laser systems for characterization of different nonlinear scattering effects in fibers ...
and reflection of devices based on fiber Bragg gratings (FBG) in telecommunication lines and sensor nets. ...
Model analysis of the Raman spectrum with Gaussian profiles is based on the following expression [21] : ( ) ( ) 2 2 , 1 exp / , m N R R i v i i i g v g A v v = é ù = -- G ë û å ( 8 ) where N m is the ...
doi:10.5772/59144
fatcat:pfxgupxkpvbn5dxe7oaep76in4
A Crest Factor Reduction Technique for LTE Signals with Target Relaxation in Power Amplifier Linearization
2022
Sensors
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2022; you can also visit the original URL.
The file type is application/pdf.
A developed framework is built to provide a demonstration of the modeling figures of merit with orthogonal frequency division multiplexing (OFDM) support under signal conditioning and transmission restrictions ...
The signal conditioning treatment to achieve good relation of power with radio-frequency (RF) conversion in conventional transceiver systems require precise baseband models. ...
Additionally to UABC and TECNM/Tijuana Institute of Technology, for the support provided for the development of this research. ...
doi:10.3390/s22031176
pmid:35161921
pmcid:PMC8840697
fatcat:hjdhhnjzavhhpoy2srkxzwczkm
Differential Phase-Shift Keying for High Spectral Efficiency Optical Transmissions
2004
IEEE Journal of Selected Topics in Quantum Electronics
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2010; you can also visit the original URL.
The file type is application/pdf.
The advantages of DPSK in terms of receiver sensitivity and tolerance to fiber nonlinearity will be discussed in detail. ...
Results of experimental and numerical investigations of several phase shift keying formats, including polarization division multiplexing and multilevel encoding, will be reviewed. ...
The BER as a function of signal-to-noise ratio for OOK can be calculated with essentially the same model based on matched optical filtering. ...
doi:10.1109/jstqe.2004.827835
fatcat:ar3naiyggrfdfir7tobkmmevke
A Survey on Techniques for Enhancing Speech
2018
International Journal of Computer Applications
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL.
The file type is application/pdf.
This paper focuses on the techniques that appeared in the literature to enhance the signal of speech. ...
Some of the interferences that may affect the speech quality of transit include acoustic additive noise, acoustic reverberation or white Gaussian noise. ...
The author derived the MMSE STSA estimator, based on modeling noise and speech spectral components as statistically independent Gaussian random variables and analyzed the performance of the proposed STSA ...
doi:10.5120/ijca2018916290
fatcat:24ribi6izbat5ggndg7qdame24
Multi-core Fiber Technology
[chapter]
2021
Fiber Optics - Technology and Applications
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2021; you can also visit the original URL.
The file type is application/pdf.
This chapter describes the recent progress on the Multi-core fibers technology for the application of high capacity space-division multiplexing to be utilized for long-distance transmission systems. ...
Traditional single-mode fiber capacity issues will be mitigated by using space-division multiplexing in future 5G, IoT, and M2M networks. ...
Ps is the per-channel (dual-polarization) signal launch power, and PASE is the per-channel (dual-polarization) amplified spontaneous emission power. ...
doi:10.5772/intechopen.100116
fatcat:2kihonhspba45pyhnu66zgbula
« Previous
Showing results 1 — 15 out of 691 results