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Pollution plume monitoring using autonomous vehicles is important due to the adverse effect of pollution plumes on the environment and associated monetary losses. Using the advection-diffusion plume dispersion model, we present a control…

Signal Processing · Electrical Eng. & Systems 2018-04-25 Muhammad Fahad , Yi Guo , Brian Bingham , Kristopher Krasnosky , Laura Fitzpatrick , Fernando A. Sanabria

Recent advances in small-scale unmanned aerial vehicles (UAVs) have opened up new horizons for establishing UAV-based free-space optical (FSO) links. However, FSO technology requires precise beam alignment while random fluctuations of…

Signal Processing · Electrical Eng. & Systems 2019-04-09 Hossein Safi , Akbar Dargahi , Julian Cheng

Clustering techniques offer a powerful framework for analyzing complex flow dynamics and reducing computational costs in large-scale simulations. In this work, we propose a novel clustering-based approach using Vector Quantization Principal…

We propose OneFlow - a flow-based one-class classifier for anomaly (outlier) detection that finds a minimal volume bounding region. Contrary to density-based methods, OneFlow is constructed in such a way that its result typically does not…

Machine Learning · Computer Science 2021-09-24 Łukasz Maziarka , Marek Śmieja , Marcin Sendera , Łukasz Struski , Jacek Tabor , Przemysław Spurek

Network management and security is currently one of the most vibrant research areas, among which, research on detecting and identifying anomalies has attracted a lot of interest. Researchers are still struggling to find an effective and…

Networking and Internet Architecture · Computer Science 2010-07-09 Huy Nguyen , Tam Van Nguyen , Dong Il Kim , Deokjai Choi

Ultrafast electron experiments usually work with low-emittance few-electron pulsed beams. The structures are usually much larger than the (average) electron pulse size posing challenges to the resolution of simulations. We present the…

Accelerator Physics · Physics 2023-02-21 Jan Lautenschläger , Uwe Niedermayer

Flow measurement in partially filled pipes presents greater complexity compared to fully filled systems, primarily due to the complex velocity distribution within the cross-section, which is a key source of measurement inaccuracy. To…

Signal Processing · Electrical Eng. & Systems 2025-12-10 Mohammadhadi Mesmarian , Mohammad Mahdi Kharidar , Hossein Nejat Pishkenari

This paper proposes an uncertainty-aware marine pollution source tracking framework for unmanned surface vehicles (USVs). By integrating high-fidelity marine pollution dispersion simulation with informative path planning techniques, we…

Robotics · Computer Science 2025-11-12 Song Ma , Yanchao Wang , Richard Bucknall , Yuanchang Liu

Future imaging spectrometers will increase data volumes by orders of magnitude, requiring automated detection of trace gas point sources. We present a fully automated framework that combines machine learning-based morphological analysis…

Experimental aeroacoustics is concerned with the estimation of acoustic source power distributions, which are for instance caused by fluid structure interactions on scaled aircraft models inside a wind tunnel, from microphone array…

Numerical Analysis · Mathematics 2022-10-05 Roland Griesmaier , Hans-Georg Raumer

Complexity of the Operations Research Theory tasks can be often diminished in cases that do not require finding the exact solution. For example, forecasting two-dimensional hierarchical time series leads us to the transportation problem…

Optimization and Control · Mathematics 2019-09-06 S. V. Rotin , I. V. Gusakov , V. Ya. Gusakov

This paper presents an apparatus to measure the flow of granular matter through a funnel with a force sensor. In addition to being easily reproducible, our proposed method enhances measurement accuracy from the popular method that uses a…

Soft Condensed Matter · Physics 2018-09-25 Junghwan Lee , Kyeong Min Kim

During the phase of landing, an important aircraft-noise source emanates from the interaction of the landing-gear wake with the deployed flap. In the present work we cast this problem in an academic framework, by studying a simplified…

We investigate the statistics of orientation of small, neutrally buoyant, spherical tracers whose center of mass is displaced from the geometrical center. If appropriate-sized particles are considered, a linear relation can be derived…

Fluid Dynamics · Physics 2013-05-14 Guido Boffetta , Massimo Cencini , Filippo De Lillo , Francesco Santamaria

In this paper, we address the task of active acoustic source tracking as part of robotic path planning. It denotes the planning of sequences of robotic movements to enhance tracking results of acoustic sources, e.g., talking humans, by…

Audio and Speech Processing · Electrical Eng. & Systems 2019-09-10 Thomas Haubner , Alexander Schmidt , Walter Kellermann

A particle tracking velocimetry apparatus is presented that is capable of measuring three-dimensional particle trajectories across large volumes, of the order of several meters, during natural snowfall events. Field experiments, aimed at…

Fluid Dynamics · Physics 2023-04-12 Nathaniel Bristow , Jiaqi Li , Peter Hartford , Michele Guala , Jiarong Hong

We address one of the main challenges towards autonomous quadrotor flight in complex environments, which is flight through narrow gaps. While previous works relied on off-board localization systems or on accurate prior knowledge of the gap…

Robotics · Computer Science 2018-04-06 Davide Falanga , Elias Mueggler , Matthias Faessler , Davide Scaramuzza

Identifying a gas source in turbulent environments presents a significant challenge for critical applications such as environmental monitoring and emergency response. This issue is addressed through an approach that combines distributed IoT…

Localizing sources of troublesome oscillations, particularly forced oscillations (FOs), in power systems has received considerable attention over the last few years. This is driven in part by the massive deployment of phasor measurement…

Applications · Statistics 2024-09-04 Rajasekhar Anguluri , Anamitra Pal

Due to severe signal attenuation at millimeter-wave (mmWave) frequencies large antenna arrays are required at both base station and user equipment to achieve necessary beamfoming gain and compensate for the signal power loss. The initial…

Signal Processing · Electrical Eng. & Systems 2020-04-06 Veljko Boljanovic , Han Yan , Danijela Cabric
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