Zobrazeno 1 - 10
of 570
pro vyhledávání: '"Alan S. Willsky"'
Publikováno v:
FUSION
Multi-sensor multi-target tracking requires the solution to a challenging data association problem. The problem simplifies when a portion of the target state vector and the corresponding sensor data satisfy a particular Markovian assumption. This lea
Publikováno v:
2019 22th International Conference on Information Fusion (FUSION).
Publikováno v:
Journal of Guidance, Control, and Dynamics. 39:118-127
This paper considers the problem of jointly estimating the attitude and spin rate of a spinning spacecraft. Psiaki has formulated a family of optimization problems that generalize the classical least-squares attitude-estimation problem, known as Wahb
Publikováno v:
2018 IEEE Aerospace Conference.
A key challenge in disparate-sensor multi-target tracking is how to exploit sparse but highly relevant information from some sensors, in combination with voluminous data from other sensors. Effective exploitation is problematic for both MHT-based app
Publikováno v:
IEEE Transactions on Signal Processing. 63:576-589
Gaussian Markov random fields (GMRFs) or Gaussian graphical models have been widely used in many applications. Efficiently drawing samples from GMRFs has been an important research problem. In this paper, we introduce the subgraph perturbation sampli
Publikováno v:
SIAM Journal on Optimization. 25:1314-1343
We study the convex hull of $SO(n)$, thought of as the set of $n\times n$ orthogonal matrices with unit determinant, from the point of view of semidefinite programming. We show that the convex hull of $SO(n)$ is doubly spectrahedral, i.e. both it and
Publikováno v:
SDF
This paper considers targets that exhibit move-stop-move motion patterns, for which we have kinematic-sensor detections. Our particular focus is how best to score the association of tracklets that result from a first stage of single-sensor kinematic
Autor:
Mujdat Cetin, Ivana Stojanovic, William Clement Karl, Özben Naime Önhon, Sadegh Samadi, Alan S. Willsky, Kush R. Varshney
Publikováno v:
Prof. Willsky via Chris Sherratt
This article presents a survey of recent research on sparsity-driven synthetic aperture radar (SAR) imaging. In particular, it reviews 1) the analysis and synthesis- based sparse signal representation formulations for SAR image formation together wit
Publikováno v:
2016 IEEE Aerospace Conference.
This paper provides recent experimental results on a large-scale scenario for recently-introduced MCMC-based and MHT-based solutions to the multi-INT problem, where sparse non-kinematic data is to be fused with multi-sensor kinematic data. The MCMC D
Publikováno v:
CISS
The structural properties of graphs are usually characterized in terms of invariants, which are functions of graphs that do not depend on the labeling of the nodes. In this paper we study convex graph invariants, which are graph invariants that are c