**Commenced**in January 2007

**Frequency:**Monthly

**Edition:**International

**Paper Count:**3464

# Search results for: covariance matrix estimation

##### 3464 BIASS in the Estimation of Covariance Matrices and Optimality Criteria

**Authors:**
Juan M. Rodriguez-Diaz

**Abstract:**

**Keywords:**
correlated observations,
information matrix,
optimality criteria,
variance-covariance matrix

##### 3463 Performance Comparison of Wideband Covariance Matrix Sparse Representation (W-CMSR) with Other Wideband DOA Estimation Methods

**Authors:**
Sandeep Santosh,
O. P. Sahu

**Abstract:**

**Keywords:**
W-CMSR,
wideband direction of arrival (DOA),
covariance matrix,
electrical and computer engineering

##### 3462 Parallel Computation of the Covariance-Matrix

**Authors:**
Claude Tadonki

**Abstract:**

**Keywords:**
covariance-matrix,
multicore,
numerical computing,
parallel computing

##### 3461 Adaptive Target Detection of High-Range-Resolution Radar in Non-Gaussian Clutter

**Authors:**
Lina Pan

**Abstract:**

**Keywords:**
non-Gaussian clutter,
covariance matrix estimation,
target detection,
maximum likelihood

##### 3460 The Influence of Covariance Hankel Matrix Dimension on Algorithms for VARMA Models

**Authors:**
Celina Pestano-Gabino,
Concepcion Gonzalez-Concepcion,
M. Candelaria Gil-Fariña

**Abstract:**

**Keywords:**
covariances Hankel matrices,
Kronecker indices,
system identification,
VARMA models

##### 3459 Principle Components Updates via Matrix Perturbations

**Authors:**
Aiman Elragig,
Hanan Dreiwi,
Dung Ly,
Idriss Elmabrook

**Abstract:**

**Keywords:**
online data updates,
covariance matrix,
online principle component analysis,
matrix perturbation

##### 3458 Comparative Analysis of Two Approaches to Joint Signal Detection, ToA and AoA Estimation in Multi-Element Antenna Arrays

**Authors:**
Olesya Bolkhovskaya,
Alexey Davydov,
Alexander Maltsev

**Abstract:**

**Keywords:**
antenna array,
signal detection,
ToA,
AoA estimation

##### 3457 On Parameter Estimation of Simultaneous Linear Functional Relationship Model for Circular Variables

**Authors:**
N. A. Mokhtar,
A. G. Hussin,
Y. Z. Zubairi

**Abstract:**

**Keywords:**
simultaneous linear functional relationship model,
Fisher information matrix,
parameter estimation,
circular variables

##### 3456 Efficient Principal Components Estimation of Large Factor Models

**Authors:**
Rachida Ouysse

**Abstract:**

**Keywords:**
high dimensionality,
unknown factors,
principal components,
cross-sectional correlation,
shrinkage regression,
regularization,
pseudo-out-of-sample forecasting

##### 3455 Blind Channel Estimation for Frequency Hopping System Using Subspace Based Method

**Authors:**
M. M. Qasaymeh,
M. A. Khodeir

**Abstract:**

**Keywords:**
frequency hopping,
channel model,
time delay estimation,
RRLU,
RRQR,
MUSIC,
LS-ESPRIT

##### 3454 Design of Transmit Beamspace and DOA Estimation in MIMO Radar

**Authors:**
S. Ilakkiya,
A. Merline

**Abstract:**

**Keywords:**
adaptive and non-adaptive spectral estimation,
direction of arrival estimation,
MIMO radar,
rotational invariance property,
transmit,
receive beamforming

##### 3453 An Optimized Method for 3D Magnetic Navigation of Nanoparticles inside Human Arteries

**Authors:**
Evangelos G. Karvelas,
Christos Liosis,
Andreas Theodorakakos,
Theodoros E. Karakasidis

**Abstract:**

**Keywords:**
computational fluid dynamics,
CFD,
covariance matrix adaptation evolution strategy,
discrete element method,
DEM,
magnetic navigation,
spherical particles

##### 3452 Kalman Filter Gain Elimination in Linear Estimation

**Authors:**
Nicholas D. Assimakis

**Abstract:**

**Keywords:**
discrete time,
estimation,
Kalman filter,
Kalman filter gain

##### 3451 Introduction of Robust Multivariate Process Capability Indices

**Authors:**
Behrooz Khalilloo,
Hamid Shahriari,
Emad Roghanian

**Abstract:**

**Keywords:**
multivariate process capability indices,
robust M-estimator,
outlier,
multivariate quality control,
statistical quality control

##### 3450 A Mixing Matrix Estimation Algorithm for Speech Signals under the Under-Determined Blind Source Separation Model

**Authors:**
Jing Wu,
Wei Lv,
Yibing Li,
Yuanfan You

**Abstract:**

**Keywords:**
DBSCAN,
potential function,
speech signal,
the UBSS model

##### 3449 An Improved Adaptive Dot-Shape Beamforming Algorithm Research on Frequency Diverse Array

**Authors:**
Yanping Liao,
Zenan Wu,
Ruigang Zhao

**Abstract:**

**Keywords:**
adaptive beamforming,
correction index,
limited snapshot,
multi-carrier frequency diverse array,
robust

##### 3448 Survey of Methods for Solutions of Spatial Covariance Structures and Their Limitations

**Authors:**
Joseph Thomas Eghwerido,
Julian I. Mbegbu

**Abstract:**

**Keywords:**
parametric,
nonstationary,
Kernel,
Kriging

##### 3447 An Efficient Fundamental Matrix Estimation for Moving Object Detection

**Authors:**
Yeongyu Choi,
Ju H. Park,
S. M. Lee,
Ho-Youl Jung

**Abstract:**

**Keywords:**
corner detection,
optical flow,
epipolar geometry,
RANSAC

##### 3446 Poster : Incident Signals Estimation Based on a Modified MCA Learning Algorithm

**Authors:**
Rashid Ahmed ,
John N. Avaritsiotis

**Abstract:**

**Keywords:**
Direction of Arrival,
neural networks,
Principle Component Analysis,
Minor Component Analysis

##### 3445 Real-Time Radar Tracking Based on Nonlinear Kalman Filter

**Authors:**
Milca F. Coelho,
K. Bousson,
Kawser Ahmed

**Abstract:**

**Keywords:**
Kalman filter,
nonlinear state estimation,
optimal tracking,
stochastic environment

##### 3444 The Second Smallest Eigenvalue of Complete Tripartite Hypergraph

**Authors:**
Alfi Y. Zakiyyah,
Hanni Garminia,
M. Salman,
A. N. Irawati

**Abstract:**

**Keywords:**
connectivity,
graph,
hypergraph,
Laplacian matrix

##### 3443 Multivariate Control Chart to Determine Efficiency Measurements in Industrial Processes

**Authors:**
J. J. Vargas,
N. Prieto,
L. A. Toro

**Abstract:**

**Keywords:**
data envelopment analysis,
DEA,
Multivariate control chart,
rejection simulation method

##### 3442 Conditions on Expressing a Matrix as a Sum of α-Involutions

**Authors:**
Ric Joseph R. Murillo,
Edna N. Gueco,
Dennis I. Merino

**Abstract:**

**Keywords:**
α-involutory Matrices,
sum of α-involutory Matrices,
Trace,
Matrix Theory

##### 3441 Theoretical Framework for Value Creation in Project Oriented Companies

**Authors:**
Mariusz Hofman

**Abstract:**

**Keywords:**
value creation,
project-oriented company,
structural equation modelling

##### 3440 Combining the Dynamic Conditional Correlation and Range-GARCH Models to Improve Covariance Forecasts

**Authors:**
Piotr Fiszeder,
Marcin Fałdziński,
Peter Molnár

**Abstract:**

**Keywords:**
volatility,
DCC model,
high and low prices,
range-based models,
covariance forecasting

##### 3439 Manufacturing and Characterization of Ni-Matrix Composite Reinforced with Ti3SiC2 and Ti2AlC; and Al-Matrix with Ti2SiC

**Authors:**
M. Hadji,
N. Chiker,
Y. Hadji,
A. Haddad

**Abstract:**

**Keywords:**
MAX phase,
microstructures,
composites,
hardness,
SEM

##### 3438 Improving Temporal Correlations in Empirical Orthogonal Function Expansions for Data Interpolating Empirical Orthogonal Function Algorithm

**Authors:**
Ping Bo,
Meng Yunshan

**Abstract:**

**Keywords:**
data interpolating empirical orthogonal function,
image reconstruction,
sea surface temperature,
temporal filter

##### 3437 Estimation of Location and Scale Parameters of Extended Exponential Distribution Based on Record Statistics

**Authors:**
E. Krishna

**Abstract:**

**Keywords:**
BLUE,
BLUP,
condence interval,
Marshall-Olkin distribution,
Monte Carlo simulation,
prediction of future records,
record statistics

##### 3436 Inverse Matrix in the Theory of Dynamical Systems

**Authors:**
Renata Masarova,
Bohuslava Juhasova,
Martin Juhas,
Zuzana Sutova

**Abstract:**

**Keywords:**
dynamic system,
transfer matrix,
inverse matrix,
modeling

##### 3435 Ensemble Sampler For Infinite-Dimensional Inverse Problems

**Authors:**
Jeremie Coullon,
Robert J. Webber

**Abstract:**

**Keywords:**
Bayesian inverse problems,
Markov chain Monte Carlo,
infinite-dimensional inverse problems,
dimensionality reduction