Search Results - "Nordebo, S"

Quasi-Herglotz functions and convex optimization by Ivanenko, Y, Nedic, M, Gustafsson, M, Jonsson, B L G, Luger, A, Nordebo, S

“…We introduce the set of quasi-Herglotz functions and demonstrate that it has properties useful in the modelling of non-passive systems. The linear space of…”
Get full text

Compressive sensing in electrical impedance tomography for breathing monitoring by Shiraz, A, Khodadad, D, Nordebo, S, Yerworth, R, Frerichs, I, van Kaam, A, Kallio, M, Papadouri, T, Bayford, R, Demosthenous, A

“…Electrical impedance tomography (EIT) is a functional imaging technique in which cross-sectional images of structures are reconstructed based on boundary…”
Get more information

Characterization of MIMO Antennas Using Spherical Vector Waves by Gustafsson, M., Nordebo, S.

“…Spherical vector waves are used to analyze multiple-input multiple-output (MIMO) antennas. An expansion of the far-field pattern in spherical vector waves…”
Get full text

Quantization of propagating modes in optical fibres by Khrennikov, A, Nilsson, B, Nordebo, S, Volovich, I V

“…The electromagnetic fields of a single optic fibre mode are quantized based on the observation that these fields can be derived from a scalar harmonic…”
Get full text

Statistical signal analysis for the inverse source problem of electromagnetics by Nordebo, S., Gustafsson, M.

“…A statistical signal analysis for the inverse source problem of electromagnetics is given. This correspondence considers the problem of estimating either the…”
Get full text

Fundamental Limitations for DOA and Polarization Estimation With Applications in Array Signal Processing by Nordebo, S., Gustafsson, M., Lundback, J.

“…Using a generic electromagnetic model based on the spherical vector harmonics, we provide the Cramer-Rao lower bound (CRB) for direction-on-arrival (DOA) and…”
Get full text

Estimation of Twist in Uniaxial Cylinders With Inverse Electromagnetic Scattering by Nilsson, B., Nordebo, S., Sojden, T.

“…For the purpose of determining the twist of a homogeneous, locally reacting, uniaxial cylinder, an inverse microwave scattering theory is presented. Remote…”
Get full text

Sensitivity Analysis for Antenna Near-Field Imaging by Nordebo, S., Gustafsson, M., Persson, K.

“…Although imaging and inverse scattering problems have been thoroughly studied during the last century, there is only a partial understanding of these complex…”
Get full text

A Digital Directional Coupler With Applications to Partial Discharge Measurements by Lundback, J., Nordebo, S., Biro, T.

“…This paper presents a digital directional coupler (DDC) that separates forward- and backward-traveling waves on a transmission line. Based on two independent…”
Get full text

Optimal Antenna Currents for Q, Superdirectivity, and Radiation Patterns Using Convex Optimization by Gustafsson, M., Nordebo, S.

“…The high Q-factor (low bandwidth) and low efficiency make the design of small antennas challenging. Here, convex optimization is used to determine current…”
Get full text

Design of discrete coefficient FIR filters by a fast entropy-directed deterministic annealing algorithm by Persson, P., Nordebo, S., Claesson, I.

“…We present an entropy-directed deterministic annealing optimization algorithm and show its applicability to the problem of designing digital filters with…”
Get full text

On the optimal plasmonic resonances in gold nanospheres embedded in dispersive media by Nordebo, S., Ivanenko, Y., Bayford, Richard

“…New fundamental upper bounds have recently been given regarding the optimal plasmonic multipole resonances of a rotationally invariant sphere embedded in a…”
Get full text

Non-passive approximation as a tool to study the realizability of amplifying media by Ivanenko, Y., Nordebo, S.

“…Non-passive approximation is presented as a tool to study the realizability of amplifying media. As an interesting physical example, we derive first a suitable…”
Get full text

Hardware efficient digital filter design by multimode mean field annealing by Persson, P., Nordebo, S., Claesson, I.

“…The multimode mean field annealing (MM-MFA) approach is introduced as an efficient tool to design digital filters with discrete coefficients, each implemented…”
Get full text

The dual parameterization approach to optimal least square FIR filter design subject to maximum error constraints by Hai Huyen Dam, Kok Lay Teo, Nordebo, S., Cantoni, A.

“…This paper is concerned with the design of linear-phase finite impulse response (FIR) digital filters for which the weighted least square error is minimized,…”
Get full text

Design of minimum-phase digital filters as the sum of two allpass functions using the cepstrum technique by Hai Huyen Dam, Nordebo, S., Svensson, L.

“…A new and practical approach using the cepstrum technique is proposed in the design of minimum-phase digital filters as the sum of two allpass functions. The…”
Get full text

Analysis of a tripole array for polarization and direction of arrival estimation by Lundback, J., Nordebo, S.

“…In this paper we evaluate the performance of a tripole array for estimation of the polarization and one dimensional direction of arrival (DOA). We employ a…”
Get full text

Convergence analysis of a twin-reference complex least-mean-squares algorithm by Johansson, S., Nordebo, S., Claesson, I.

“…In many noise control applications, the noise is dominated by low frequencies and generated by several independent periodic sources. In such situations the…”
Get full text

Weighted Chebyshev approximation for the design of broadband beamformers using quadratic programming by Nordebo, S., Claesson, I., Nordholm, S.

“…A method to solve a general broadband beamformer design problem is formulated as a quadratic program. As a special case, the minimax near-field design problem…”
Get full text

Optimum window design by semi-infinite quadratic programming by Nordebo, S., Claesson, I., Zhuquan Zang

“…This letter presents a new extended active set strategy for optimum finite impulse response (FIR) window design by semi-infinite quadratic programming. The…”
Get full text