Sökning: "complex lms"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden complex lms.

  1. 1. Active Control of Propeller-Induced Noise in Aircraft Algorithms & Methods

    Detta är en avhandling från Karlskrona, Ronneby : Blekinge Institute of Technology

    Författare :Sven Johansson; Blekinge Tekniska Högskola.; [2000]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; active control of sound; active noise control; anc; actuator individual normalized filtered-x lms; filtered-x lms algorithm; newton algorithm; complex lms; multireference algorithm; leaky lms; control effort weighting; feedforward control; feedback contro;

    Sammanfattning : In the last decade acoustic noise has become more and more regarded as a problem. In cars, boats, trains and aircraft, low-frequency noise reduces comfort. Lightweight materials and more powerful engines are used in high-speed vehicles, resulting in a general increase in interior noise levels. LÄS MER

  2. 2. Active Noise Control in Aircraft Algorithms and Applications

    Detta är en avhandling från Lund/Ronneby : University of Karlskrona/Ronneby, Lund University

    Författare :Sven Johansson; Blekinge Tekniska Högskola.; [1998]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; active noise control; feedforward control; filtere-x lms algorithm; complex lms; multichannel system; multiple reference; aircraft; headset;

    Sammanfattning : The thesis consists of five papers which are divided into three main parts. Parts A and B deal with active noise control in a propeller aircraft application, whereas Part C deals with active noise control in a helicopter application. LÄS MER

  3. 3. Deepening the insights of lignin structure : Lignin-carbohydrate complex (LCC) fractionation and characterization and Kraft lignin amination

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Xueyu Du; KTH.; [2013]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Improvement of kraft pulping delignification efficiency and value-addition of industrial kraft lignin are two attractive topics. The proposal that delignification is deteriorated by the presence of lignin-carbohydrate complex (LCC) is still being debated. LÄS MER

  4. 4. Growth and Characterization of Amorphous TiAlSiN and HfAlSiN Thin Films

    Detta är en avhandling från Linköping : Linköping University Electronic Press

    Författare :Hanna Fager; Linköpings universitet.; Linköpings universitet.; [2012]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This Thesis explores amorphous transition metal nitrides for cutting tool applications. The aim is to extend the knowledge on amorphous nitride thin lms, to describe the growth process, and to explore ways of characterizing these novel complex materials. LÄS MER

  5. 5. Mueller matrix ellipsometry studies of nanostructured materials

    Detta är en avhandling från Linköping : Linköping University Electronic Press

    Författare :Roger Magnusson; Linköpings universitet.; Linköpings universitet.; [2014]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Materials can be tailored on the nano-scale to show properties that cannot be found in bulk materials. Often these properties reveal themselves when electromagnetic radiation, e.g. light, interacts with the material. LÄS MER