Browsing by Subject "Low complexity"

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    Comparison of low complexity UWB range estimators based on experimental data
    (IEEE, 2012) Soğancı, Hamza; Gezici, Sinan; Tan, A.S.
    In this paper, performances of low complexity time based range estimators that are employed for ultra wide-band (UWB) systems are compared using experimental data. These estimators are widely used in practical applications due to their low complexity. However, performances of these estimators vary depending on the choice of certain parameters such as the threshold value and window size. The optimal values for these parameters are investigated for several situations using the data acquired in the experiments. © 2012 IEEE.
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    Preconditioning iterative MLFMA solutions of integral equations
    (IEEE, 2010) Gürel, Levent; Malas, Tahir; Ergül, Özgür
    The multilevel fast multipole algorithm (MLFMA) is a powerful method that enables iterative solutions of electromagnetics problems with low complexity. Iterative solvers, however, are not robust for three-dimensional complex reallife problems unless suitable preconditioners are used. In this paper, we present our efforts to devise effective preconditioners for MLFMA solutions of difficult electromagnetics problems involving both conductors and dielectrics. © 2010 IEEE.