Sökning: "maximum-likelihood detection"

Visar resultat 21 - 25 av 51 avhandlingar innehållade orden maximum-likelihood detection.

  1. 21. Integer Quadratic Programming for Control and Communication

    Författare :Daniel Axehill; Anders Hansson; Manfred Morari; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Integer Quadratic Programming; Model Predictive Control; Hybrid Systems; Semidefinite Programming; Code Division Multiple Access; Multiuser Detection; Automatic Control; Communication; Automatic control; Reglerteknik;

    Sammanfattning : The main topic of this thesis is integer quadratic programming with applications to problems arising in the areas of automatic control and communication. One of the most widespread modern control methods is Model Predictive Control (MPC). In each sampling time, MPC requires the solution of a Quadratic Programming (QP) problem. LÄS MER

  3. 22. Generalized APP Detection for Communication over Unknown Time-Dispersive Waveform Channels

    Författare :Anders Hansson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The principle of transmitting time-equidistant pulses to carry discrete information is fundamental. When the pulses overlap, intersymbol interference occurs. Maximum-likelihood sequence detection of such signals observed in additive white Gaussian noise (AWGN) was known in the early 1970s. LÄS MER

  4. 23. On Turning Point Detection in Cyclical Processes.With applications to the monitoring of business cycles

    Författare :Eva M. Andersson; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Business cycles; Turning point detection; Monitoring; Non-parametric regression; Statistical surveillance; Likelihood ra;

    Sammanfattning : In many areas it is important to detect the turning points in an on-going process. The main application in this thesis is detection of turns in business cycles. LÄS MER

  5. 24. Iterative Detection, Decoding and Channel Parameter Estimation for Orthogonally Modulated DS-CDMA Systems

    Författare :Pei Xiao; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : In this thesis, we study iterative detection, decoding and channel parameter estimation algorithms for asynchronous direct-sequence code division multiple access (DS-CDMA) systems employing orthogonal signalling formats and long scrambling codes. Multiuser detection techniques are widely used to combat the detrimental effects of multipath fading and multiple access interference (MAI), which are the major impairments in CDMA communication systems. LÄS MER

  7. 25. Detection of Impact Sources Using an Impulse Response Recognition Technique Applications on Rattle Sources in Gearboxes

    Författare :Jens Blomqvist; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Noise and vibration properties of products have become important functions in the competition between different manufacturers and are seen today as indicators for the quality of the product. In this work, a new approach is presented for the localisation of impulse sources in complex structures, e.g. engines, driving units or complete vehicles. LÄS MER