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Direction of Arrival (DOA) estimation of multiple narrow-band coherent or partially coherent sources is a major challenge in array signal processing. Though many subspace- based algorithms are available in literature, none of them tackle…

Information Theory · Computer Science 2018-01-26 Abhishek Aich , P. Palanisamy

Here, we present our studies on intra-trap dynamics of an optical dipole trap (ODT) loaded from a Magneto-optical trap (MOT) of $^{87}$Rb atoms. A spatio-temporal Monte Carlo (MC) simulation approach has been employed in conjunction with…

Atomic Physics · Physics 2025-05-09 Sankalp Shandilya , Gunjan Verma , Kavish Bhardwaj , S. P. Ram , V. B. Tiwari , S. R. Mishra

Hurricanes cause widespread destruction, resulting in diverse damage types and severities that require timely and accurate assessment for effective disaster response. While traditional single-label classification methods fall short of…

Computer Vision and Pattern Recognition · Computer Science 2025-07-04 Zhangding Liu , Neda Mohammadi , John E. Taylor

We present a method to estimate two-dimensional, time-invariant oceanic flow fields based on data from both ensemble forecasts and online measurements. Our method produces a realistic estimate in a computationally efficient manner suitable…

Robotics · Computer Science 2021-03-24 K. Y. Cadmus To , Felix H. Kong , Ki Myung Brian Lee , Chanyeol Yoo , Stuart Anstee , Robert Fitch

Multi-legged robots (MLRs) are vulnerable to leg damage during complex missions, which can impair their performance. This paper presents a self-modeling and damage identification algorithm that enables autonomous adaptation to partial or…

Robotics · Computer Science 2025-06-26 Sahand Farghdani , Mili Patel , Robin Chhabra

The problem of automated car damage assessment presents a major challenge in the auto repair and damage assessment industry. The domain has several application areas ranging from car assessment companies such as car rentals and body shops…

Computer Vision and Pattern Recognition · Computer Science 2022-02-03 Syed Adnan Yusuf , Abdulmalik Ali Aldawsari , Riad Souissi

Objective:Computer vision-based up-to-date accurate damage classification and localization are of decisive importance for infrastructure monitoring, safety, and the serviceability of civil infrastructure. Current state-of-the-art deep…

Computer Vision and Pattern Recognition · Computer Science 2023-03-09 Arunabha M. Roy , Jayabrata Bhaduri

The high structural deficient rate poses serious risks to the operation of many bridges and buildings. To prevent critical damage and structural collapse, a quick structural health diagnosis tool is needed during normal operation or…

Applications · Statistics 2018-12-10 Yizheng Liao , Anne S. Kiremidjian , Ram Rajagopal , Chin-Hsuing Loh

In two-way time-of-arrival (TOA) systems, a user device (UD) obtains its position by round-trip communications to a number of anchor nodes (ANs) at known locations. The objective function of the maximum likelihood (ML) method for two-way…

Signal Processing · Electrical Eng. & Systems 2021-03-18 Sihao Zhao , Xiao-Ping Zhang , Xiaowei Cui , Mingquan Lu

Quick and accurate assessment of the damage state of buildings after natural disasters is crucial for undertaking properly targeted rescue and subsequent recovery operations, which can have a major impact on the safety of victims and the…

Computer Vision and Pattern Recognition · Computer Science 2024-10-30 Mateusz Żarski , Jarosław Adam Miszczak

To plan a rapid response and minimize operational costs, passive optical network operators require to automatically detect and identify faults that may occur in the optical distribution network. In this work, we present DSP-Enhanced OTDR, a…

Signal Processing · Electrical Eng. & Systems 2018-01-22 Manuel P. Fernandez , Laureano A. Bulus Rossini , Juan Pablo Pascual , Pablo A. Costanzo Caso

In this paper, we investigate the damage detection of structures seen as an optimization problem, using modal characterization to evaluate the dynamic response of the structure given a damage model. We implemented the firefly optimization…

Computational Engineering, Finance, and Science · Computer Science 2018-04-25 Camilo Manrique Escobar , Octavio Andrés González-Estrada , Heller Guillermo Sánchez Acevedo

Here, we explore the problem of error propagation mitigation in modular digital twins as a sequential decision process. Building on a companion study that used a Hidden Markov Model (HMM) to infer latent error regimes from surrogate-physics…

Machine Learning · Computer Science 2026-04-27 Annice Najafi , Shokoufeh Mirzaei

Marine debris poses a significant ecological threat to birds, fish, and other animal life. Traditional methods for assessing debris accumulation involve labor-intensive and costly manual surveys. This study introduces a framework that…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Raymond Wang , Nicholas R. Record , D. Whitney King , Tahiya Chowdhury

Damage detection in active-sensing, guided-waves-based Structural Health Monitoring (SHM) has evolved through multiple eras of development during the past decades. Nevertheless, there still exists a number of challenges facing the current…

Signal Processing · Electrical Eng. & Systems 2021-06-29 Ahmad Amer , Fotis Kopsaftopoulos

In this work, a probabilistic damage detection and identification scheme using stochastic time series models in the context of acousto-ultrasound guided wave-based SHM is proposed, and its performance is assessed experimentally. In order to…

Signal Processing · Electrical Eng. & Systems 2022-01-28 Shabbir Ahmed , Fotis Kopsaftopoulos

With the continued growth of its core technologies, including the Internet of Things (IoT), artificial intelligence (AI), Big Data and data analytics, and edge computing, digital twin (DT) technology has witnessed a significant increase in…

Emerging Technologies · Computer Science 2025-04-23 Ghofran Khalaf , May Itani , Sanaa Sharafeddine

For autonomous driving, an essential task is to detect surrounding objects accurately. To this end, most existing systems use optical devices, including cameras and light detection and ranging (LiDAR) sensors, to collect environment data in…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Jindi Zhang , Yifan Zhang , Kejie Lu , Jianping Wang , Kui Wu , Xiaohua Jia , Bin Liu

Commonly adopted in the manufacturing and aerospace sectors, digital twin (DT) platforms are increasingly seen as a promising paradigm to control and monitor software-based, "open", communication systems, which play the role of the physical…

Signal Processing · Electrical Eng. & Systems 2023-01-30 Clement Ruah , Osvaldo Simeone , Bashir Al-Hashimi

This paper presents an open-source miniature car-like robot with low-cost sensing and a pipeline for optimization-based system identification, state estimation, and control. The overall robotics platform comes at a cost of less than \$\,700…