Upgrading Behavioral Models for the Design of Digital Predistorters [PDF]
Sensors, 2021 This work presents a strategy to upgrade models for power amplifier (PA) behavioral modeling and digital predistortion (DPD). These incomplete structures are the consequence of nonlinear order and memory depth model truncation with the purpose of ...
Carlos Crespo-Cadenas +2 more
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Digitally-Compensated Wideband 60 GHz Test-Bed for Power Amplifier Predistortion Experiments [PDF]
Sensors, 2021 Millimeter waves will play an important role in communication systems in the near future. On the one hand, the bandwidths available at millimeter-wave frequencies allow for elevated data rates, but on the other hand, the wide bandwidth accentuates the ...
Martin Pospíšil +3 more
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Power Amplifier Predistortion Using Reduced Sampling Rates in the Forward and Feedback Paths [PDF]
SensorsThe feasibility of implementing digital predistortion for next-generation wireless communication is faced with a dilemma due to the ever-increasing demand for faster data rates. This causes the utilized bandwidth to increase significantly, as seen in the
Serien Ahmed +3 more
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Heuristic Model Structure Optimization for Digital Predistortion [PDF]
IEEE Access, 2021 Power amplifiers (PAs) are widely used in RF broadcasting applications. However, they exhibit nonlinear behavior and deteriorate the quality of transmitted signals.
Wen Qiao +5 more
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Effect on the linearity improvement of TWTA by combining RF predistortion linearizer and digital predistortion algorithm [PDF]
Tongxin xuebao, 2012 In order to keep the adaptive digital predistortion algorithms valid,usually the output power level of the TWTA must be reduced,which corresponded a reduced efficiency of the TWTA.A predistortion technique was proposed by combining RF predistortion ...
Xin HU +3 more
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A Low-Computational-Complexity Digital Predistortion Model for Wideband Power Amplifier [PDF]
SensorsThis paper proposes a Composition Piecewise Memory Polynomial (CPMP) digital predistortion model based on a Vector Switched (VS) behavioral model to address the challenges of severe nonlinearity and strong memory effects in wideband power amplifiers (PAs)
Xu Lu +6 more
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Hardware-Efficient Real-Valued Neural Predistorter for Multimode Power Amplifiers [PDF]
SensorsDigital predistortion (DPD) is essential for mitigating nonlinear distortion in radio-frequency (RF) power amplifiers (PAs), particularly in modern multimode transmitters.
Luiza Beana Chipansky Freire +2 more
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Design and Implementation of Plug-in Short-wave Predistortion Device [PDF]
Jisuanji gongcheng, 2017 Among the existing short-wave communication systems with predistortion,the predistortion processing is commonly highly integrated with the baseband signal processing of the exciter and cannot be applied directly in the existing short-wave communication ...
WU Hao,QU Xiaoxu,LOU Jingyi
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Concurrent Multi-Beam Digital Predistortion Using FFT Beamforming and Virtual Arrays [PDF]
SensorsA digital predistortion (DPD) scheme for concurrent multi-beam transmission in fully digital multiple-input, multiple-output (MIMO) systems, using Fast Fourier Transform (FFT) beamforming and so-called virtual-array processing, is proposed.
Björn Langborn +3 more
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On-board Signal Predistortion for Digital Transparent Satellites [PDF]
2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2015 peer reviewedOn-board processing (OBP), a paradigm that allows for manipulation of the signal at the satellite transponder, is being embraced by a large section of the satellite community.
OTTERSTEN, Björn +2 more
core +3 more sources