Browsing by Keywords "Function evaluation"
Now showing items 1-12 of 12
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Bilgisayarlı iyonosfer tomografisinde açılım işlevlerinin ve yeniden yapılandırma algoritmalarının model üzerinden karşılaştırılması
(IEEE, 2005-05)Bilgisayarlı İyonosfer Tomografisi (BİT), iyonosfer elektron yoğunluğunun iki boyutlu veya üç boyutlu olarak görüntülenmesi için kullanılan bir yöntemdir. Bu yöntem özellikle iyonosfer fiziği veya uydu haberleşmesi gibi ... -
Decentralized control and periodic feedback
(IEEE, 1994)The decentralized stabilization problem for linear, discretetime, periodically time-varying plants using periodic controllers is considered. The main tool used is the technique of lifting a periodic system to a time-invariant ... -
Efficient use of closed-form Green's functions for three-dimensional problems involving multilayered media
(IEEE, 1994-06)With the use of casting the spatial domain Green's functions into closed forms approach, it was demonstrated that the computational efficiency of the method of moments (MoM) for the solution of the mixed potential integral ... -
Fast and accurate solutions of scattering problems involving dielectric objects with moderate and low contrasts
(IEEE, 2007-08)We consider the solution of electromagnetic scattering problems involving relatively large dielectric objects with moderate and low contrasts. Three-dimensional objects are discretized with Rao-Wilton-Glisson functions and ... -
GPS/TEC estimation with IONOLAB method
(IEEE, 2007)Total Electron Content (TEC) is a key variable to measure the ionospheric characteristics and disturbances. The Global Positioning System (GPS) can be used for TEC estimation making use of the recorded signals at the GPS ... -
Improving AWE accuracy using multipoint Pade approximation
(IEEE, 1994-05-06)A new method is proposed for dominant pole-zero analysis of large linear circuits containing both lumped and distributed elements. This method is based on a multipoint Pade approximation. It finds a reduced order s-domain ... -
Large deviations of probability rank
(IEEE, 2000)Consider a pair of random variables (X,Y) with distribution P. The probability rank function is defined so that G(x|y) = 1 for the most probable outcome x conditional on Y = y, G(x|y) = 2 for the second most probable ... -
Levy walk evolution for global optimization
(ACM, 2008-07)A novel evolutionary global optimization approach based on adaptive covariance estimation is proposed. The proposed method samples from a multivariate Levy Skew Alpha-Stable distribution with the estimated covariance matrix ... -
Memory-efficient multilevel physical optics algorithm for fast computation of scattering from three-dimensional complex targets
(IEEE, 2007)Multilevel physical optics (MLPO) algorithm provides a speed-up for computing the physical-optics integral over complex bodies for a range of aspect angles and frequencies. On the other hand, when computation of the RCS ... -
New identities for 7-cores with prescribed BG-rank
(Elsevier BV * North-Holland, 2008)Let π be a partition. BG-rank(π) is defined as an alternating sum of parities of parts of π [A. Berkovich, F.G. Garvan, On the Andrews-Stanley refinement of Ramanujan's partition congruence modulo 5 and generalizations, ... -
Self Fourier functions and fractional Fourier transforms
(Elsevier, 1994)Self Fourier functions and fractional Fourier transforms are two concepts that have been discussed recently. Investigated is the combination of these two concepts: self fractional Fourier functions and the fractional Fourier ... -
Synthetic TEC mapping with ordinary and universal kriging
(IEEE, 2007-06)Spatiotemporal variations in the ionosphere affects the HF and satellite communications and navigation systems. Total Electron Content (TEC) is an important parameter since it can be used to analyze the spatial and temporal ...
