Search
Now showing items 1-10 of 61
Radiation Characteristics Of A Coaxial Waveguide With Opposing Dielectric Filled Grooves
(Inst Engineering Technology-Iet, Michael Faraday House Six Hills Way Stevenage, Hertford Sg1 2Ay, England, 2010-01)
The purpose of the present study is to provide a rigorous analysis to the coaxial waveguide with two opposing grooves in the outer and inner cylinders with different depths and filled with different dielectric materials. ...
Bayesian Compressive Sensing for Ultra-Wideband Channel Models
(Ieee, 345 E 47Th St, New York, Ny 10017 Usa, 2012-07-03)
Considering the sparse structure of ultra-wideband (UWB) channels, compressive sensing (CS) is suitable for UWB channel estimation. Among various implementations of CS, the inclusion of Bayesian framework has shown potential ...
Application of Stockwell Coherence To Prediction Of Alertness Under Anaesthesia
(Brno Univ Technology Vut Press, Purkynova 118, Brno 61200, Czech Republic, 2010)
In this paper, we represent an application of Stockwell Coherence to scalp EEG signals under anesthesia. By the analysis of overlapping, stationary data segments, we obtained the time-varying Stockwell coherence, which ...
Posterior Cramer-Rao Lower Bounds for Dual Kalman estimation
(Academic Press inc Elsevier Science, 525 B St, Ste 1900, San Diego, Ca 92101-4495 USA, 2012-01)
We present the Posterior Cramer-Rao Lower Bounds (PCRLB) for the dual Kalman filter estimation where the parameters are assumed to be time-invariant and stationary random variables. Relations between the PCRLB, the states, ...
Inverse Modeling of Respiratory System during Noninvasive Ventilation by Maximum Likelihood Estimation
(Hindawi Publishing Corporation, 410 Park Avenue, 15Th Floor, #287 Pmb, New York, Ny 10022 Usa, 2010)
We propose a procedure to estimate the model parameters of presented nonlinear Resistance-Capacitance (RC) and the widely used linear Resistance-Inductance-Capacitance (RIC) models of the respiratory system by Maximum ...
High-Performance Mimo Ofdm Wireless Systems With Generalized Prefix
(IEEE, 345 E 47Th St, New York, Ny 10017 Usa, 2013)
Consumers require increasing data rates and therefore it is important to develop techniques that increase the spectrum efficiency. MIMO OFDM is a fundamental technology for high data rate wireless systems. Correlation among ...
Wireless 3-Axis Accelerometer System for Measurement of Structural Displacement
(IEEE, 345 E 47Th St, New York, Ny 10017 Usa, 2013)
In this study, we present the design of a 3-axis acceleration measurement system that is capable of UTC (Coordinated Universal Time) time-stamping captured from a Global Positioning System (GPS) receiver module. With this ...
A New Method for Doppler Centroid Estimation Based on Block Processing
(IEEE, 345 E 47Th St, New York, Ny 10017 Usa, 2013)
Doppler centroid frequency is an important parameter for Synthetic Aperture Radar signal processing, which is used to design a proper matched filter in azimuth domain. Doppler centroid is estimated from the received data. ...
Performance Improvement for Correlated 4x4 MIMO-OFDM Systems by Generalized Prefix Approach
(IEEE, 345 E 47Th St, New York, Ny 10017 Usa, 2013)
Antenna correlation limits the multiplexing gain achieved by practical MIMO-OFDM systems and degrades the performance significantly. Recently, investigations are focused to reduce the antenna correlation by the designing ...
On channel estimation for spatial modulated systems over time-varying channels
(Academic Press Inc Elsevier Science, 525 B St, Ste 1900, San Diego, Ca 92101-4495 USA, 2015-02)
Spatial Modulation (SM) has been proposed recently for multiple-input multiple-output (MIMO) systems to cope with the interchannel interference and to reduce the detection complexity as compared to the conventional MIMO ...