Browsing Reprints by Author "Braca, Paolo"
Now showing items 41-53 of 53
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Multiple sensor measurement updates for the extended target tracking random matrix model
Vivone, Gemine; Granström, Karl; Braca, Paolo; Willett, Peter K. (CMRE, 2019/06)In this paper, multiple sensor measurement update is studied for a random matrix model. Four different updates are presented and evaluated: three updates based on parametric approximations of the extended target state ... -
Multisensor adaptive Bayesian tracking under time-varying target detection probability
Papa, Giuseppe; Braca, Paolo; Horn, Steven A.; Marano, Stefano; Matta, Vincenzo; Willett, Peter K. (CMRE, 2019/06)In practical tracking applications, the target detection performance may be unknown and also change rapidly in time. This work considers a network of sensors and develops a target-tracking procedure able to adapt and react ... -
Online estimation of unknown parameters in multisensor-multitarget tracking: a belief propagation approach
Soldi, Giovanni; Braca, Paolo (CMRE, 2019/05)We propose a Bayesian multisensor-multitarget tracking framework, which adapts to randomly changing conditions by continually estimating unknown model parameters along with the target states. The time-evolution of the model ... -
Performance assessment of vessel dynamic models for long-term prediction using heterogeneous data
Vivone, Gemine; Millefiori, Leonardo; Braca, Paolo (CMRE, 2019/06)Ship traffic monitoring is a foundation for many maritime security domains, and monitoring system specifications underscore the necessity to track vessels beyond territorial waters. However, vessels in open seas are seldom ... -
Prediction of rendezvous in maritime situational awareness
Uney, Murat; Millefiori, Leonardo; Braca, Paolo (CMRE, 2019/05)In this work, we consider the problem of algorithmically predicting rendezvous among vessels based on their trajectory forecasts in a maritime environment. The problem is treated as hypothesis testing on the expected value ... -
Realistic extended target model for track before detect in maritime surveillance
Errasti, Borja; Fuscaldo, Walter; Braca, Paolo; Vivone, Gemine (CMRE, 2019/06)Traditional target tracking algorithms are generally fed a set of thresholded detections under the hypothesis that no more than one detection is generated by each single target. Improvements in modern radar systems have ... -
Realistic ship model for extended target tracking algorithms
Errasti, Borja; Fuscaldo, Walter; Braca, Paolo; Vivone, Gemine (CMRE, 2019/06)Recent developments in high resolution sensors have encouraged the use of Extended Target Tracking (ETT) algorithms specifically designed to deal with targets that generate more than one detection per frame. At the same ... -
Scalable adaptive multitarget tracking using multiple sensors
Meyer, Florian; Braca, Paolo; Hlawatsch, Franz; Micheli, Michele; LePage, Kevin D. (CMRE, 2019/06)In networked mobile multitarget tracking systems, parameters such as detection probabilities, clutter rates, and motion model parameters are often unknown and time-varying. Such parameter variability can seriously degrade ... -
A scalable algorithm for tracking an unknown number of targets using multiple sensors
Meyer, Florian; Braca, Paolo; Willett, Peter K.; Hlawatsch, Franz (CMRE, 2019/06)We propose an algorithm for tracking an unknown number of targets based on measurements provided by multiple sensors. Our algorithm achieves low computational complexity and excellent scalability by running belief propagation ... -
Scalable distributed change detection and its application to maritime traffic
Millefiori, Leonardo; Braca, Paolo; Arcieri, Gianfranco (CMRE, 2019/06)Building on a novel methodology based on the Ornstein-Uhlenbeck (OU) process to perform accurate long-term predictions of future positions of ships at sea, we present a statistical approach to the detection of abrupt changes ... -
Tracking an unknown number of targets using multiple sensors: a belief propagation method
Meyer, Florian; Braca, Paolo; Willett, Peter K.; Hlawatsch, Franz (CMRE, 2019/06)We propose a multisensor method for tracking an unknown number of targets. Low computational complexity and very good scalability in the number of targets, number of sensors, and number of measurements per sensor are ... -
Validation of the Ornstein-Uhlenbeck route propagation model in the Mediterranean Sea
Millefiori, Leonardo; Pallotta, Giuliana; Braca, Paolo; Horn, Steven A.; Bryan, Karna (CMRE, 2019/06)Traffic route analysis and prediction are both crucial to maritime security. The ability to predict a vessel position in the future is essential to provide information on upcoming events. However, accurate prediction along ... -
Variable structure interacting multiple model algorithm for ship tracking using HF surface wave radar data
Vivone, Gemine; Braca, Paolo; Horstmann, Jochen (CMRE, 2019/06)These last decades spawned a great interest towards low-power High-Frequency (HF) Surface-Wave (SW) radars for ocean remote sensing. By virtue of their over-the-horizon coverage capability and continuous time mode of ...