Search
Now showing items 1-10 of 163
Image denoising using adaptive subband decomposition
(IEEE, 2001)
In this paper, we present a new image denoising method based on adaptive subband decomposition (or adaptive wavelet transform) in which the filter coefficients are updated according to an Least Mean Square (LMS) type ...
Theoretical limits and a practical estimator for joint estimation of respiration and heartbeat rates using UWB impulse radio
(IEEE, 2007)
In this paper, Cramer-Rao lower bounds are derived fo r joint estimation of respiration and heartbeat rates via impulse radio ultra-wideband signals. Generic models are employed for displacement functions due to respiration ...
Stochastic resonance in binary composite hypothesis-testing problems in the Neyman-Pearson framework
(Elsevier, 2012-02-20)
Performance of some suboptimal detectors can be enhanced by adding independent noise to their inputs via the stochastic resonance (SR) effect. In this paper, the effects of SR are studied for binary composite hypothesis-testing ...
On multi-dimensional and noisy quadratic signaling games and affine equilibria
(IEEE, 2015-07)
This study investigates extensions of the quadratic cheap talk and signaling game problem, which has been introduced in the economics literature. Two main contributions of this study are the extension of Crawford and Sobel's ...
Noise-enhanced M-ary hypothesis-testing in the minimax framework
(IEEE, 2009-09)
In this study, the effects of adding independent noise to observations of a suboptimal detector are studied for M-ary hypothesis-testing problems according to the minimax criterion. It is shown that the optimal additional ...
Comparison of low complexity UWB range estimators based on experimental data
(IEEE, 2012)
In this paper, performances of low complexity time based range estimators that are employed for ultra wide-band (UWB) systems are compared using experimental data. These estimators are widely used in practical applications ...
LOS/NLOS detection for UWB signals: A comparative study using experimental data
(IEEE, 2010)
In this paper the problem of detecting the channel state between LOS and NLOS conditions is addressed using UWB signals. A new distribution-based identification approach is proposed and its performance is compared with ...
Effects of additional independent noise in binary composite hypothesis-testing problems
(IEEE, 2009-09)
Performance of some suboptimal detectors can be improved by adding independent noise to their observations. In this paper, the effects of adding independent noise to observations of a detector are investigated for binary ...
Time delay estimation in cognitive radio systems
(IEEE, 2009-12)
In cognitive radio systems, secondary users can utilize multiple dispersed bands that are not used by primary users. In this paper, time delay estimation of signals that occupy multiple dispersed bands is studied. First, ...
Jamming strategies in wireless source localization systems
(IEEE, 2019-08)
We consider optimal jamming strategies in wireless source localization systems, where anchor nodes estimate positions of target nodes in the presence of jammers that emit zero-mean Gaussian noise. The Cramér-Rao lower bound ...