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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.

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Showing 1 to 13 of 13 for “"Pre-distortion"”.

  1. Digital Pre-Distortion: The Implementation, Minimisation, & Estimation

    Byrne, DeclanNational University of Ireland, Maynooth2021

    … technique can be applied to a PA. Digital Pre-Distortion (DPD) has been widely demonstrated in industry and academia to perform linearisation. Some issues concerning DPD are related to implementation efficiency, robust function estimation and the complexity of DPD solutions. This …

    maynooth Repository record

  2. Fast Adaptive Digital Pre-Distortion Scheme for Application in Cellular Base Station Power Amplifiers

    Adaramola, Francisca FunmilayoCarleton University2015

    … necessary to design fast and noncomplex digital pre-distorters that are able to achieve and maintain acceptable linearization performance and compensate for the dynamic distortions generated by the PA. This thesis explores an adaptive DPD scheme using multiple models that combines a switching and …

    carleton Repository record

  3. Nonlinear Analysis and Digital Pre-Distortion of the SC-FDMA Signals in LTE Uplink System

    Zhu, Changwen

    portland-state Repository record

  4. Linear Operation of Switch-Mode Outphasing Power Amplifiers

    Finnerty, KeithNational University of Ireland Maynooth2016

    … within outphasing power amplifiers which prevent linear amplification. From the analysis it was clear that high power non-linear effects are correctable with currently available techniques however non-linear effects around the zero crossing point are not. As a result signal processing …

    maynooth Repository record

  5. Very High Speed Coherent Passive Optical Networks

    Kovacs, Istvan BenceUniversity of Cambridge2025

    … of the power budget, linear and non-linear pre-distortion techniques are in- vestigated. The solution with the balanced photodiode exceeds the E1 class power budget requirement (>33 dB), whereas the single ended photodiode solution meets the N1 class requirement (29 dB). This is supported by …

    cambridge Repository record

  6. Optimal nonlinear digital signal processing : a dynamical systems approach

    Tanovic, Omer.Massachusetts Institute of Technology2019

    … generating optimal outputs with arbitrary precision is proposed. The second part contains analysis of the nonlinear distortion introduced into the base-band (discrete-time) input-output dynamics of the communication systems by the (continuous-time) power amplifier nonlinearity. It is shown …

    mit Repository record

  7. Digitally-assisted, efficiency enhanced, linear RF power amplifier architectures

    Masood, MirGeorgia Institute of Technology2018

    This dissertation presents the use of advanced digital techniques in the development of efficiency enhanced, linearized power amplifier (PA) architectures. In this research, digital enhancements are used to boost the efficiency of a dual-input LDMOS Doherty PA of 500W peak power. It is shown that …

    gatech Repository record

  8. New strategies for low noise, agile PLL frequency synthesis

    Wang, H.UCL (University College London)2009

    … design of frequency synthesisers is to generate precise and stable output frequencies with fast switching and minimal spurious and phase noise. The conflict between high resolution and fast switching leads to two separate integer synthesisers to satisfy critical system requirements. This thesis …

    ucl Repository record

  9. Analytical Modeling and Design of High-Efficiency Input-Output Harmonic Tuned Microwave Power Amplifiers

    Dhar, Sagar KumarSchulich School of Engineering2020

    … amplifier design methodologies have been comprehensively investigated by exploring and exploiting the input and output nonlinearities of the device. In particular, the impact of input nonlinearity on the PA performance is addressed comprehensively, and the efficiency minima phenomenon due to …

    calgary Repository record

  10. OWSS And MIMO-STC-OFDM: Signaling Systems for the Next Generation of High Speed Wireless LANs

    Divakaran, DineshDigital Commons @ University of South Florida2008

    … to create MIMO-OFDM systems. This dissertation presents two different basis technologies for the next generation of high speed WLANs: OWSS and MIMO-STC-OFDM. OWSS, or Orthogonal Wavelet Division Multiplexed - Spread Spectrum is a new class of wavelet pulses and a corresponding signaling system …

    usf Repository record

  11. High-Speed Low-Voltage Line Driver for SerDes Applications

    Rogers, MOxford Brookes University2009

    … specification was decided to be an accurate representation of future requirements that a line driver in a SerDes device will have to conform to. A suitable line driver with a differential output was identified to meet the demanding specifications and was modified so that it can perfonn an …

    oxford-brookes Repository record

  12. Broadband and Energy-Efficient Power Amplifier Architectures

    Akbarpour, MohammadhassanGraduate Studies2015

    … in the TLLM amplifier and a complete and comprehensive design procedure is provided for designing broadband TLLM amplifiers. Three different amplifier prototypes are also implemented using the TLLM architecture showing its performance and capability. The second architecture proposed in this …

    calgary Repository record

  13. High Speed Wavelength Tuning of SGDBR Lasers for Optical Coherence Tomography Applications

    Maher, Benjamin2019

    … OCT and to even exceed the capability of present swept-wavelength OCT source solutions. SGDBR lasers were originally developed for telecommunications applications using Wavelength Division Multiplexing. In the telecommunications application, the wide wavelength tuning range of the device …

    calpoly Repository record