Ara
Toplam kayıt 479, listelenen: 301-310
Tip singularity of the electromagnetic field at the apex of a material cone
(Springer-Verlag Berlin, 2004)
The tip Singularity of the electromagnetic field at the apex of a cone is investigated in its most general framework. To this end one considers, without loss of generality, a circularly symmetric cone which separates two ...
Wavelet image coding using the spherical representation
(IEEE, 2005)
In this paper, we introduce the "spherical representation", which provides a new adaptive framework for modeling and coding the image information in wavelet subbands. Based on this representation, a practical coding algorithm ...
Complex and real rays in three dimensional Minkowski space
(IEEE, 2002)
A new approach to the theory of complex rays is proposed. It is shown that the Minkowski space is more appropriate for describing these rays than the usual, Euclidian spaces. Some illustrative examples are represented.
Channel estimation for space-time block coded OFDM systems in the presence of multipath fading
(IEEE, 2002)
In this paper, a computationally efficient, non-data-aided maximum a posterlori(MAP) channel estimation algorithm is proposed for orthogonal frequency division multiplexing (OFDM) systems with transmitter diversity using ...
QoS-constrained core selection for group communication
(IEEE, 2005)
The core-based approach in multipoint communication enhances the solution space in terms of QoS-efficiency of solutions in inter and intra-domain routing. In an earlier work [KH04], we showed that the constrained cost ...
Immitance data modelling via linear interpolation techniques
(IEEE, 2002)
With the advancement of the manufacturing technologies to produce new generation analog/digital communication systems, immitance data modelling has gained renewed importance in the literature. Specifically, models are ...
Microwave amplifier design for mobile communication via immittance data modelling
(IEEE, 2003)
In this paper, a practical broadband microwave amplifier design algorithm based on immittance data modelling is presented. In the course of design, first, the optimum input and output terminations for the active device are ...
A parametric approach to describe distributed two-ports with lumped discontinuities for the design of broadband MMIC's
(IEEE, 2003)
This paper addreses the use of mixed lumped and distributed elements in the matching equalizers of broadband microwave communication subsytems in MMIC realizations. Construction of two-variable scattering functions for ...
The concept of confluence and the edge conditions for a wedge bounded by material sheets
(IEEE, 2000)
The edge conditions which dictate the asymptotic behaviour of the electromagnetic field near the edges play a crucial role in solving boundary-value problems involving boundaries having edges, in analytical studies they ...
A method for calculating profiles of a dielectric thick lenses
(IEEE, 2001)
Hasanov and Polat (see International Journal of Electronics and Communications (AEO), vol.54, no.2, p.109-113, 2000) investigated the transformation of a plane wavefront to another plane wavefront after passing through a ...