Sharif Digital Repository

Robustness enhancement of content-based watermarks using entropy masking effect

Author

Sadr, A. H.

Pub. Year

2005

Subjects

Adaptive systems. / Imaging systems. / Opacity. / Robustness (control systems) / Speech intelligibility. / Contrast masking. / Entropy masking. / Host image. / Watermark power enhancement. / Digital watermarking.

Experimental and analytical approaches toward controlling viscous fingering at the interface of two immiscible fluids using the optimal constant piecewise injection rate

Author

Sadr, S.

Publisher

Elsevier Ltd,

Pub. Year

2023

Subjects

Linear injection rate. / Optimal constant piecewise injection rate. / Saffman-Taylor instability. / Tip-splitting. / Viscous fingering.

Leukocyte's nucleus segmentation using active contour in YCbCr colour space

Author

Sadr, A.

Pub. Year

2010

Subjects

Active Contour. / Image segmentation. / White blood cell nucleus. / YCbCr colour space. / Active contour method. / Active contours. / Automatic segmentations. / Blood cells. / Cell counting. / Cell nucleus. / Colour spaces. / Laboratory procedures. / Nucleus segmentation. / Subimages. / White blood cells. / Whole body. / Ycbcr color spaces. / Biomedical engineering. / Blood. / Color. / Cytology. / Image enhancement. / Cells.

Efficient positioning in MIMO radars with widely separated antennas

Author

Amiri, R.

Publisher

Institute of Electrical and Electronics Engineers Inc,

Pub. Year

2017

Subjects

Doppler shift (DS) / Multiple-input multiple-output (MIMO) radar. / Target localization. / Time delay (TD) / Antennas. / Codes (symbols) / Cramer-Rao bounds. / Feedback control. / MIMO systems. / Numerical methods. / Radar. / Radar antennas. / Radar systems. / Telecommunication repeaters. / Time delay. / Closed form solutions. / Cramer Rao lower bound. / Moving targets. / Multiple input multiple output (MIMO) radars. / Theoretical study. / Weighted-least-squares algorithm. / MIMO radar.

Real-Time cooperative adaptive robust relay beamforming based on kalman filtering channel estimation

Author

Maleki Sadr, M.A.

Publisher

Institute of Electrical and Electronics Engineers Inc,

Pub. Year

2019

Subjects

Extended Kalman filter. / Non-linear programming. / UKF. / Beamforming. / Extended Kalman filters. / Markov processes. / Nonlinear programming. / Signal receivers. / Signal to noise ratio. / Adaptive channel estimation. / Channel uncertainty modeling. / Imperfect CSI. / Non-linear optimization. / Robust optimization. / Signal-to-interference and noise ratios. / Simultaneous estimation. / Unscented Kalman Filter. / Channel estimation.

Positioning in MIMO radars based on constrained least squares estimation

Author

Amiri, R.

Pub. Year

2017

Subjects

Doppler shift (DS) / Semidefinite relaxation (SDR) / Time delay (TD) / Convex optimization. / Least squares approximations. / MIMO systems. / Numerical methods. / Optimization. / Radar. / Radar systems. / Constrained least squares. / Least squares criterion. / Moving target localization. / Multiple input multiple output (MIMO) radars. / Nonconvex optimization. / Semidefinite relaxation. / State-of-the-art methods. / Target localization. / MIMO radar.

Exact solution for elliptic localization in distributed MIMO radar systems

Author

Amiri, R.

Publisher

Institute of Electrical and Electronics Engineers Inc,

Pub. Year

2018

Subjects

Bistatic range (BR) / Maximum likelihood (ML) estimation. / Multiple-input multiple-output (MIMO) radar. / Antennas. / Distributed computer systems. / Maximum likelihood. / MIMO radar. / MIMO systems. / Numerical methods. / Radar. / Radar antennas. / Radar measurement. / Radar systems. / Radar target recognition. / Solution mining. / Transmitters. / Bistatic range. / Multiple input multiple output (MIMO) radars. / Noise levels. / Noise measurements. / Target localization. / Maximum likelihood estimation.

Noise pollution assessment in khoramabad to presenting executive strategies to control or reduce it

Author

Kiani Sadr, M.

Pub. Year

2009

Subjects

Khorram abad. / Noise alignment maps. / Noise pollution. / Questionnaire. / Strategy.

Robust relay beamforming against jamming attack

Author

Maleki Sadr, M. A.

Pub. Year

2017

Subjects

Channel estimation. / Jamming attack. / Kalman filter. / Mathematical model. / Robustness. / Array processing. / Beamforming. / Channel state information. / Cramer-Rao bounds. / Estimation. / Information filtering. / Jamming. / Kalman filters. / Mathematical models. / Quadratic programming. / Robustness (control systems) / Signal processing. / Array signal processing. / Collaborative beamforming. / Imperfect CSI. / Jamming attacks. / Relays. / Channel estimation.

Robust relay beamforming against jamming attack

Author

Maleki Sadr, M. A.

Publisher

Institute of Electrical and Electronics Engineers Inc,

Pub. Year

2018

Subjects

Jamming attack. / Kalman filter. / Array processing. / Beamforming. / Channel state information. / Cramer-Rao bounds. / Estimation. / Information filtering. / Jamming. / Kalman filters. / Mathematical models. / Quadratic programming. / Robustness (control systems) / Signal processing. / Array signal processing. / Collaborative beamforming. / Imperfect CSI. / Jamming attacks. / Relays. / Channel estimation.

Thermal, thermodynamic and exergoeconomic investigation of a parabolic trough collector utilizing nanofluids

Author

Vahedi, B.

Publisher

Elsevier Ltd,

Pub. Year

2022

Subjects

CFD Simulation. / Exergoeconomic. / Nanofluid. / Parabolic trough solar collector. / Alumina. / Computational fluid dynamics. / Cost effectiveness. / Diffusion in liquids. / Exergy. / Friction. / Glass. / Heat convection. / Heat flux. / Heat losses. / Heat transfer coefficients. / Nanofluidics. / Nanoparticles. / Reynolds number. / Solar collectors. / Solar energy. / CFD simulations. / Collector systems. / Cost effective. / Exergoeconomics. / Nanofluids. / Parabolic trough collectors. / Parabolic trough solar collectors. / Thermal. / Thermal Performance. / Thermodynamic performance. / Aluminum oxide.

An analytical method in computational aeroelasticity based on Wagner function

Author

Shams, Sh.

Publisher

Curran Associates Inc,

Pub. Year

2006

Subjects

Airfoils. / Dynamic response. / Elastic waves. / Equations of motion. / Flutter (aerodynamics) / Ordinary differential equations. / Analytical method. / Computational aero elasticity. / Flutter speed. / Integral function. / Integral part. / Integro-differential system. / Sharp-edged gust. / Two degrees of freedom. / Aeroelasticity.