NLFM pulse radar for drone detection using predistortion technique
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Electromagnetic Waves and Applications"
DOI: 10.1080/09205071.2020.1844598
Abstract: The development of radar technology for the detection of small drones is getting attention of researchers. In this work, the detection of drones using Ku-band radar system has been discussed. We have utilized the advantage… read more here.
Keywords: detection; radar system; predistortion; nlfm pulse ... See more keywords
Hybrid Digital/Analog Predistorter Architecture With Enhanced Robustness to Hardware Impairments
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Access"
DOI: 10.1109/access.2024.3443538
Abstract: In this paper, a hybrid predistortion architecture that allies the benefits of digital and analog predistortion techniques is investigated. This Hybrid Digital/Analog Predistorter (H-DAPD) uses a low order memory polynomial as a baseband digital predistortion… read more here.
Keywords: analog predistorter; hardware impairments; predistortion; digital analog ... See more keywords
Novel Post-Weighting Digital Predistortion Structures for Hybrid Beamforming Systems
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2021.3120648
Abstract: We propose a new method to tackle the predistortion problem for the hybrid beamforming structure of Millimeter-Wave (MM-Wave) Massive MIMO in 5G communication systems in order to widen the linearized angle of beams without any… read more here.
Keywords: hybrid beamforming; digital predistortion; predistortion; novel post ... See more keywords
An Improved Digital Predistortion Mechanism via Joint Baseband and Radio Frequency Optimization
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2021.3132685
Abstract: Predistortion techniques can be categorized into digital predistortion (DPD) and analog predistortion (APD), which are always implemented separately in their own domains. The baseband-domain mean square error (MSE) is the design target of DPD, and… read more here.
Keywords: digital predistortion; baseband; dpd; improved digital ... See more keywords
Light Convolutional Neural Network for Digital Predistortion of Radio Frequency Power Amplifiers
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2024.3443104
Abstract: Predistortion models of radio frequency (RF) power amplifier (PA), such as the generalized memory polynomial (GMP) model and artificial neural networks (ANNs) model, suffer from limited predistortion precision and high complexity. In this letter, we… read more here.
Keywords: frequency power; radio frequency; digital predistortion; predistortion ... See more keywords
Polynomial Regression Predistortion for Phase Error Calibration in X-Band SAR
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2020.3024600
Abstract: Predistortion is used to compensate for a waveform or phase of a signal in advance. Although the signal that applies predistortion exhibits a nonideal shape at the baseband, it has an improved phase value after… read more here.
Keywords: phase; predistortion; polynomial regression; phase error ... See more keywords
A Doubly Orthogonal Matching Pursuit Algorithm for Sparse Predistortion of Power Amplifiers
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Microwave and Wireless Components Letters"
DOI: 10.1109/lmwc.2018.2845947
Abstract: This letter presents a new method for the digital predistortion (DPD) of power amplifiers (PAs) based on sparse behavioral models. The Gram–Schmidt orthogonalization is synergistically integrated into the orthogonal matching pursuit algorithm to decorrelate the… read more here.
Keywords: power amplifiers; predistortion; matching pursuit; pursuit algorithm ... See more keywords
Beyond the Moore–Penrose Inverse: Strategies for the Estimation of Digital Predistortion Linearization Parameters
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Microwave Magazine"
DOI: 10.1109/mmm.2020.3023220
Abstract: Digital predistortion (DPD) is the linearization technique most often used to cope with the inherent tradeoff between linearity and efficiency in power amplifiers (PAs). Adaptation is needed to optimize DPD performance. This article reviews strategies… read more here.
Keywords: linearization; predistortion; moore penrose; penrose inverse ... See more keywords
Linearization Angle Widened Digital Predistortion for 5G MIMO Beamforming Transmitters
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Microwave Theory and Techniques"
DOI: 10.1109/tmtt.2021.3098600
Abstract: To reduce the demand for frequently adjusting phase shifts in the fifth-generation (5G) multiple-input multiple-output (MIMO) beamforming transmitters, in this article, a novel digital predistortion (DPD) technique is proposed, which employs multiple predistortion boxes to… read more here.
Keywords: linearization angle; predistortion; beamforming transmitters; mimo beamforming ... See more keywords
A 2-D Predistortion Based on Profile Inversion for Fully Digital Cartesian Transmitter
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Very Large Scale Integration (VLSI) Systems"
DOI: 10.1109/tvlsi.2018.2867079
Abstract: A novel 2-D digital predistortion (DPD) algorithm for fully digital Cartesian transmitter is proposed. The nonlinearity of the digital power amplifier in the digital transmitter necessitates DPD for linearization. In order to shorten the setup… read more here.
Keywords: digital cartesian; transmitter; profile inversion; predistortion ... See more keywords
Interpolation linearization predistortion technology for FMCW LiDAR.
Sign Up to like & getrecommendations! Published in 2024 at "Applied optics"
DOI: 10.1364/ao.515530
Abstract: Frequency-modulated continuous-wave (FMCW) laser ranging technology is an important development direction of light detection and ranging (LiDAR) for the future. It has the advantages of high ranging accuracy, high resolution, wide range, and no ranging… read more here.
Keywords: laser; technology; predistortion; fmcw ... See more keywords