Results 31 to 40 of about 732,139 (286)

Constrained subspace estimation via convex optimization [PDF]

2017 25th European Signal Processing Conference (EUSIPCO), 2017
Publication in the conference proceedings of EUSIPCO, Kos island, Greece ...
Santamaría Caballero, Luis Ignacio||, Vía Rodríguez, Javier, Kirby, Michael, Marrinan, Tim, Peterson, Chris, Scharf, Louis L.   +5 more
openaire   +2 more sources

Constrained State Estimation for Individual Localization in Wireless Body Sensor Networks

Sensors, 2014
Wireless body sensor networks based on ultra-wideband radio have recently received much research attention due to its wide applications in health-care, security, sports and entertainment.
Xiaoxue Feng, Hichem Snoussi, Yan Liang, Lianmeng Jiao   +3 more
doaj   +1 more source

Estimation error of the constrained lasso [PDF]

2016 54th Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2016
This paper presents a non-asymptotic upper bound for the estimation error of the constrained lasso, under the high-dimensional (n ≪ p) setting. In contrast to existing results, the error bound in this paper is sharp, is valid when the parameter to be estimated is not exactly sparse (e.g., when it is weakly sparse), and shows explicitly the effect of ...
Zerbib Nissim, Li Yen-Huan, Hsieh Ya-Ping, Cevher. Volkan   +3 more
openaire   +2 more sources

On the local stability of semidefinite relaxations

, 2020
We consider a parametric family of quadratically constrained quadratic programs (QCQP) and their associated semidefinite programming (SDP) relaxations. Given a nominal value of the parameter at which the SDP relaxation is exact, we study conditions (and ...
Agarwal, Sameer, Cifuentes, Diego, Parrilo, Pablo A., Thomas, Rekha R.   +3 more
core   +1 more source

Analysis of a Rigid-Body Pose Estimator for Relative Spacecraft Navigation

Aerospace
This study presents a rigorous error analysis of a previously published estimator that determines the single-frame relative pose of two rigid bodies from batches of point and unit vector measurements.
Caitong Peng, Daniel Choukroun
doaj   +1 more source

Efficiency-Constrained Bias-Robust Estimation of Location [PDF]

The Annals of Statistics, 1989
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Martin, R. Douglas, Zamar, Ruben H.
openaire   +2 more sources

Distributed State Estimation under State Inequality Constraints with Random Communication over Multi-Agent Networks

Information, 2018
In this paper, we investigate distributed state estimation for multi-agent networks with random communication, where the state is constrained by an inequality.
Chen Hu, Zhenhua Li, Haoshen Lin, Bing He, Gang Liu   +4 more
doaj   +1 more source

Capacity estimation of two-dimensional channels using Sequential Monte Carlo [PDF]

, 2014
We derive a new Sequential-Monte-Carlo-based algorithm to estimate the capacity of two-dimensional channel models. The focus is on computing the noiseless capacity of the 2-D one-infinity run-length limited constrained channel, but the underlying idea is
Lindsten, Fredrik, Naesseth, Christian A., Schön, Thomas B.   +2 more
core   +1 more source

Multipath Estimation Based on Modified $\varepsilon$ -Constrained Rank-Based Differential Evolution With Minimum Error Entropy

IEEE Access, 2018
Multipath is one of the dominant error sources for high-precision positioning systems, such as global navigation satellite systems. The minimum mean square error criterion is usually employed for multipath estimation under the assumption of Gaussian ...
Lan Cheng, Hong Yue, Yanjun Xing, Mifeng Ren   +3 more
doaj   +1 more source

Real-time Magnetometer Disturbance Estimation via Online Nonlinear Programming

, 2019
Magnetometer is a significant sensor for integrated navigation. However, it suffers from many kinds of unknown dynamic magnetic disturbances. We study the problem of online estimating such disturbances via a nonlinear optimization aided by intermediate ...
Wu, Jin
core   +1 more source