Search for dissertations about: "sinusoidal modeling"

Showing result 1 - 5 of 14 swedish dissertations containing the words sinusoidal modeling.

  1. 1. Radio Channel Prediction Based on Parametric Modeling

    Author : Ming Chen; [2007]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wireless communications; channel prediction; GLRT; CRLB; NLLS; polynomial phase signal; Kalman filter; NILS.; sinusoidal modeling; channel modeling; MIMO;

    Abstract : Long range channel prediction is a crucial technology for future wireless communications. The prediction of Rayleigh fading channels is studied in the frame of parametric modeling in this thesis.Suggested by the Jakes model for Rayleigh fading channels,deterministic sinusoidal models were adopted for long rangechannel prediction in early works. READ MORE

  2. 2. Channel Prediction Based On Sinusoidal Modeling

    Author : Ming Chen; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Long range channel prediction is considered as one of the most important enabling technologies to future wireless communication systems. The prediction of Rayleigh fading channels is studied in the frame of sinusoidal modeling in this thesis. A stochastic sinusoidal model to represent Rayleigh fading channel is proposed. READ MORE

  3. 3. MOSFET Modeling Aimed at Minimizing EMI in Switched DC/DC Converters Using Active Gate Control

    Author : Andreas Henriksson; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electromagnetic interference; Semiconductor device modeling; Adaptive control; MOSFET switches; Electromagnetic compatibility; State space methods; DC-DC power conversion; Power semiconductor diodes; Semiconductor device measurements;

    Abstract : This thesis deals with electromagnetic interference that can arise from switched DC/DC-converters intended for low-power applications, e.g. within the telecom or automotiveindustry. READ MORE

  4. 4. Modeling and Design of Modular MultilevelConverters for Grid Applications

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Kalle Ilves; KTH.; [2012]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Modular multilevel converter; feed-forward control; modulation; switching frequency; energy storage;

    Abstract : Grid-connected high-power converters are found in high-voltage direct current transmission (HVDC), static compensators (STATCOMs), and supplies for electric railways. Such power converters should have a high reliability, high efficiency, good harmonic performance, low cost, and a small footprint. READ MORE

  5. 5. Towards flexible audio coding

    University dissertation from Stockholm : Signaler, sensorer och system

    Author : Renat Vafin; KTH.; [2004]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electronics; Audio coding; multistage coding; waveform coding; parametric coding; sinusoidal coding; Elektronik; TECHNOLOGY Electrical engineering; electronics and photonics Electronics; TEKNIKVETENSKAP Elektroteknik; elektronik och fotonik Elektronik;

    Abstract : thesis is about audio coding and improving flexibility thereof. Audio coding is used to reduce the bit rate needed to represent audio signals in digital format. When the available bit rate is low, parametric coding methods that use models to describe perceptually-important features of audio signals have shown their efficiency. READ MORE