Browsing by Keywords "Functions"
Now showing items 2132 of 32

Newton's method for linear inequality systems
(Elsevier, 1998)We describe a modified Newton type algorithm for the solution of linear inequality systems in the sense of minimizing the ℓ2 norm of infeasibilities. Finite termination is proved, and numerical results are given. © 1998 ... 
The offresonant aspects of decoherence and a critique of the twolevel approximation
(IOP Institute of Physics, 2006)Conditions in favour of a realistic multilevelled description of a decohering quantum system are examined. In this regard the first crucial observation is that the thermal effects, contrary to the conventional belief, play ... 
On the analyticity of functions approximated by their qBernstein polynomials when q > 1
(2010)Since in the case q > 1 the qBernstein polynomials Bn,q are not positive linear operators on C[0, 1], the investigation of their convergence properties for q > 1 turns out to be much harder than the one for 0 < ... 
On the choice of basis functions to model surface electric current densities in computational electromagnetics
(WileyBlackwell Publishing, Inc., 199911)Basis functions that are used to model surface electric current densities in the electric field integral equations of computational electromagnetics are analyzed with respect to how well they model the charge distribution, ... 
An overview of regression techniques for knowledge discovery
(Cambridge University Press, 1999)Predicting or learning numeric features is called regression in the statistical literature, and it is the subject of research in both machine learning and statistics. This paper reviews the important techniques and algorithms ... 
Quantitative comparison of rooftop and RWG basis functions
(IEEE, 199707)The `rooftops' (RT) basis functions (BFs) are well suited for the modeling of geometries that conform to Cartesian coordinates, whereas the Rao, Wilton, and Glisson subdomains (RWG) BFs are capable of modeling flatfaceted ... 
Rangedoppler radar target detection using denoising within the compressive sensing framework
(IEEE, 201409)Compressive sensing (CS) idea enables the reconstruction of a sparse signal from a small set of measurements. CS approach has applications in many practical areas. One of the areas is radar systems. In this article, the ... 
Regularized estimation of vertical total electron content from GPS data for a desired time period
(WileyBlackwell, 2004)In this paper a new algorithm for shortterm regularized estimation of vertical total electron content (VTEC) from Global Positioning System (GPS) data is developed. The regularization technique can combine signals, from ... 
Solution of radiation problems using the fast multipole method
(IEEE, 199707)Electromagnetic radiation problems involving electrically large radiators and reflectors are solved using the fast multipole method (FMM). The FMM enables the solution of large problems with existing computational resources ... 
Some mathematical properties of the uniformly sampled quadratic phase function and associated issues in digital Fresnel diffraction simulations
(SPIE  International Society for Optical Engineering, 2004)The quadratic phase function is fundamental in describing and computing wavepropagationrelated phenomena under the Fresnel approximation; it is also frequently used in many signal processing algorithms. This function has ... 
SU(2)path integral investigation of Holstein dimer
(Elsevier Science Publishers B.V., Amsterdam, Netherlands, 2000)The SU(2) coherent state path integral is used to investigate the partition function of the Holstein dimer. This approach naturally takes into account the symmetry of the model. The groundstate energy and the number of ... 
Sıkıştırılmış algılama kullanarak UzaklıkDoppler radar hedef tespiti
(IEEE, 201404)Sıkıştırılmış algılama(SA) fikri, az sayıda ölçümlerden seyrek bir sinyalin geri çatımını mümkün kılar. SA yaklaşımı bir çok farklı alanda uygulamalara sahiptir. Bu alanlardan birisi de radar sistemleridir. Bu makalede, ...