Sökning: "Noise Cancellation"

Visar resultat 21 - 25 av 53 uppsatser innehållade orden Noise Cancellation.

  1. 21. Inductorless LNA and Harmonic-rejection Mixer for Wideband Direct-conversion Receiver

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Anh Chu; [2015]
    Nyckelord :Ericsson; inductorless; harmonic-rejection; Noise-cancelling LNA; Mixer; LNA; Receiver; LTE-A; 4G Network; Technology and Engineering;

    Sammanfattning : In this master thesis, combinations of noise-canceling LNA and harmonic-rejection mixers are investigated and compared to find an optimal inductorless receiver front-end for low-band (600-960MHz) FDD LTE-A network. The work was carried out in a modem development project at Ericsson Modems, Lund. LÄS MER

  3. 22. Detection of Emergency Signal in Hearing Aids using Neural Networks

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

    Författare :Vamshi Krishna Lakum; Arshini Gubbala; [2014]
    Nyckelord : Microphone Array; Fractional Delay; Beam Former; Adaptive Algorithms; Neural Networks;

    Sammanfattning : ABSTRACT The detection of an emergency signal can be estimated by the cancellation of surrounding noise and achieving the desired signal in order to alert the automobilist. The aim of the thesis is to detect the emergency signal arriving nearer to the automobilist carrying hearing aids. LÄS MER

  4. 23. Subband Adaptive Filtering Technique employing APA For Stereo Echo Cancellation over Audio Signals

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

    Författare :BHANUDURGA SRI SATYA SIMHA EDAMAKANTI; VISHNU CHAITANYA GUNDU; [2014]
    Nyckelord :Stereo Echo Cancellation; NLMS; RLS; MCHA; APA; Subband Adaptive Modeling.; Master of Science Programme in Electrical Engineering with emphasis on Signal Processing Masterprogram i Elektroteknik med inriktning mot signalbehandling;

    Sammanfattning : The world today is relying on hands free devices and teleconferencing equipments but the major problem with the use of these systems is creation of acoustic echo at the time of conversation. The quality of information to be transmitted and received is degraded due to the echo. LÄS MER

  5. 24. Modeling of cyclists acceleration behavior using naturalistic data

    Master-uppsats, KTH/Transportplanering, ekonomi och teknik

    Författare :Ding Luo; [2014]
    Nyckelord :;

    Sammanfattning : Over the past few years, many cities have witnessed the increasing popularity of cycling, especially among ordinary commuters. Accordingly, there has also been a fast growing demand for the knowledge of cycling performance as well as cyclist behavior, which can be valuable for both traffic planners and policy makers when it comes to the bicycle-related issues. LÄS MER

  7. 25. Echo Cancellation using PMSAF and Compare the performance with NLMS and improved PNLMS under different Impulse responses

    Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Författare :Mohsin Ali; Muhammad Jamal Nasir; [2013]
    Nyckelord :Echo cancellation; IPNLMS; MSAF; NLMS; PNLMS; SAF;

    Sammanfattning : In the field of signal processing adaptive filtering is a major subject which has vast applications in speech processing e.g. speech coding, speech enhancement, echo cancellation and interference. Echo is the major problem in the communication systems. LÄS MER