Essays about: "peak to average ratio"

Showing result 11 - 15 of 42 essays containing the words peak to average ratio.

  1. 11. Abundances of iron-peak elements in disk and bulge giant stars from high-resolution optical spectra

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

    Author : Maria Lomaeva; [2018]
    Keywords : Physics and Astronomy;

    Abstract : Context. The formation and evolution of the Galactic bulge and the Milky Way is still a debated subject. Observations of, e.g. READ MORE

  3. 12. Efficient DPD Coefficient Extraction For Compensating Antenna Crosstalk And Mismatch Effects In Advanced Antenna System

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

    Author : Himanshu Gaur; Md Zahidul Islam Shahin; [2018]
    Keywords : Technology and Engineering;

    Abstract : The demand for high data rates in a wireless communication system has experienced a remarkable growth over the last years. This demand is continually increasing with the growing number of wirelessly connected devices. Thus, there is a continuing hunt for increasing the data transmission rate in wireless communication systems. READ MORE

  4. 13. Demosaising using a Convolutional Neural Network approach

    University essay from Lunds universitet/Matematik LTH

    Author : Karin Dammer; Ronja Grosz; [2017]
    Keywords : Convolutional neural networks; fully convolutional neural network; demosaicing; image sensor data; noise reduction; Mathematics and Statistics;

    Abstract : This thesis is about investigating the feasibility to use convolutional neural networks as a demosaicing approach. Three loss methods and different layer structures have been evaluated as well as changing different parameters and layers in the convolutional neural network to find which changes are beneficial to make a neural network perform demosaicing well. READ MORE

  5. 14. Buildings in Arid Desert Climate : Improving Energy Efficiency with Measures on the Building Envelope

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Emma Wahl; [2017]
    Keywords : Arid desert climate; Building envelope; Cooling load; Energy efficiency; Energy savings; Thermal resistance; Solar radiation; Energieffektivitet; Energibesparingar; Klimatskal; Kylbehov; Torrt ökenklimat; Solstrålning; Värmemotstånd;

    Abstract : Because of the harsh climate of Saudi Arabia, residential buildings on average, consume more than half of the total consumed energy. A substantial share of energy goes to the air-conditioning of buildings. READ MORE

  6. 15. Crest Factor Reduction using High Level Synthesis

    University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Author : Hassan Mahmood; [2017]
    Keywords : Peak to average power ratio; Crest factor; Peak cancellation crest factor reduction; High level synthesis; Design space exploration; Object oriented programming; SystemC; Skillnad mellan maximal effekt och medeleffekt; Toppfaktor; Algoritmen peak cancellation; Högnivåsyntes; SystemC; Undersökningen av designalternativ; Objektorienterad programmering;

    Abstract : Modern wireless mobile communication technology has made noticeable improvements from the technologies in the past but is still plagued by poor power efficiency of power amplifiers found in today’s base stations. One of the factors that affect the power efficiency adversely comes from modern modulation techniques like orthogonal frequency division multiplexing which result in signals with high peak to average power ratio, also known as the crest factor. READ MORE