Essays about: "Power Amplifier"

Showing result 1 - 5 of 124 essays containing the words Power Amplifier.

  1. 1. Different Digital Predistortion Techniques for Power Amplifier Linearization

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Ibrahim Can Sezgin; [2016]
    Keywords : DPD; Digital Predistortion; Forward Behavioral Modeling; Power Amplifier; Non-Linearity; Memory Effect; Volterra Series; Memory Polynomial; Generalized Memory Polynomial; Simplified Volterra Series; Augmented Complexity Reduced Generalized Memory Polynomial; Augmented Complexity Reduced Simplified Volterra; Technology and Engineering;

    Abstract : Linearity and high efficiency are crucial requirements for any power amplifier. However, power amplifiers have high efficiency levels when they are in non-linear regions. To overcome this issue there have been many suggestions in literature, one of the most successful methods is digital predistortion method. READ MORE

  2. 2. Development of a Class D motor amplifier for a next-generation mechanism control electronics

    University essay from Luleå tekniska universitet/Rymdteknik

    Author : Juan Camilo Garcia Hernandez; [2016]
    Keywords : Power; electronics; satellites; BLDC; sinusoidal; commutation; control; PID; class D amplifier; PWM;

    Abstract : This thesis was written at Airbus DS GmbH in Friedrichshafen, Germany, as part of a project which aims to develop a new generation of class-D power amplification circuits for sinusoidal commutating motors controlling the movement of different mechanisms in satellites. Currently used topologies have disadvantages such as high power loss, analog controlling and high degree of signal distortion. READ MORE

  3. 3. Integrated CMOS Doppler Radar : Power Amplifier Mixer

    University essay from Linköpings universitet/Elektroniska Kretsar och System

    Author : Olof Sjöholm; [2016]
    Keywords : Doppler Radar Power Amplifier Mixer CMOS RF;

    Abstract : This thesis is based on a paper by V. Issakov, presented 2009, where a circuit of a merged power amplifier mixer solution was demonstrated. This work takes that solution and simplifies it for the use at a lower frequency. The implementation target is a Doppler radar application in CMOS that can detect humans in a range of 5 to 15 meters. READ MORE

  4. 4. Machine Learning for PAPR Distortion Reduction in OFDM Systems

    University essay from KTH/Signalbehandling

    Author : Manish Sonal; [2016]
    Keywords : Index Terms- OFDM; machine learning; PAPR; neural networks;

    Abstract : The purpose of the project is to investigate the possibility of using modern machine learning to model nonlinear analog devices like the Power Amplifier (PA), and study the feasibility of using such models in wireless systems design. Orthogonal frequency division multiplexing (OFDM) is one of the most prominent modulation technique used in several standards like 802. READ MORE

  5. 5. Design of an Optimal Analogue Microphone System for Best Possible Capture of Incoming Acoustic Signals

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Johan Sunnanväder; [2016]
    Keywords : Analogue Analog Microphone System Sound Audio Capture Acoustic Signals Electronics; Technology and Engineering;

    Abstract : This project examines how to achieve the best possible capture of incoming acoustic signals in a surveillance camera without overspending. This will be done by designing a complete analogue microphone system to be integrated into a surveillance camera and identify the critical stages in terms of performance. READ MORE