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Showing 126 results for "paul gratz" in Engineering · Preprint
Engineering Preprint PDF DOI

An Open-Source Hardware-Aware Sub-THz Radio-Stripe Simulator

Tijl Schepens, Thomas Feys, Thomas Eriksson, Gilles Callebaut · 2026

Sub-Terahertz radio-stripe and distributed MIMO architectures promise extreme spatial reuse and multi-GHz bandwidths, but the cascaded fiber front-haul and RF hardware impairments strongly shape end-t…

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Engineering Preprint PDF DOI

High-Slip-Ratio Control for Peak Tire-Road Friction Estimation Using Automated Vehicles

Zhaohui Liang, Hang Zhou, Heye Huanh, Xiaopeng Li · 2026

Accurate estimation of the tire-road friction coefficient (TRFC) is critical for ensuring safe vehicle control, especially under adverse road conditions. However, most existing methods rely on natural…

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Engineering Preprint PDF DOI

Digging for Data: Experiments in Rock Pile Characterization Using Only Proprioceptive Sensing in Excavation

Unal Artan, Martin Magnusson, Joshua A. Marshall · 2026

Characterization of fragmented rock piles is a fundamental task in the mining and quarrying industries, where rock is fragmented by blasting, transported using wheel loaders, and then sent for further…

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Engineering Preprint PDF DOI

Phase-Aware Policy Learning for Skateboard Riding of Quadruped Robots via Feature-wise Linear Modulation

Minsung Yoon, Jeil Jeong, Sung-Eui Yoon · 2026

Skateboards offer a compact and efficient means of transportation as a type of personal mobility device. However, controlling them with legged robots poses several challenges for policy learning due t…

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Engineering Preprint PDF DOI

Exploring Polarimetric Properties Preservation during Reconstruction of PolSAR images using Complex-valued Convolutional Neural Networks

Quentin Gabot, Joana Frontera-Pons, Jeremy Fix, Chengfang Ren, Jean-Philippe Ovarlez · 2026

The inherently complex-valued nature of Polarimetric SAR data necessitates using specialized algorithms capable of directly processing complex-valued representations. However, this aspect remains unde…

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Engineering Preprint PDF DOI

Pauli Decomposition of Impedance Matrices for Understanding the Root Cause of Instabilities in Grid-Connected Power Electronic Converters

Josue Andino, Milan Prodanovic, Javier Roldan-Perez · 2025

The impedance criterion has emerged as an alternative way to stability assessment of grid-connected power electronic converters. However, the lack of physical meaning of impedance and admittance matri…

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Engineering Preprint PDF DOI

Efficient Decoders for Sensing Subspace Code

Siva Aditya Gooty, Hessam Mahdavifar · 2025

Sparse antenna array sensing of source/target via direction of arrival (DoA) estimation motivates design of the sensing framework in joint communication and sensing (JCAS) systems for sixth generation…

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Engineering Preprint PDF DOI

Real-World Reinforcement Learning of Active Perception Behaviors

Edward S. Hu, Jie Wang, Xingfang Yuan, Fiona Luo, Muyao Li, Gaspard Lambrechts, Oleh Rybkin, Dinesh Jayaraman · 2025

A robot's instantaneous sensory observations do not always reveal task-relevant state information. Under such partial observability, optimal behavior typically involves explicitly acting to gain the m…

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Engineering Preprint PDF DOI

KinesCeTI: A Modular and Size-Adaptable Force Feedback Glove with Interchangeable Actuation for the Index and Thumb

Pablo Alvarez Romeo, Mehmet Ercan Altinsoy · 2025

Force feedback gloves in haptic applications remain constrained by limited adaptability, simplified feedback, and fixed architectures that limit force feedback versatility. To address these challenges…

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Engineering Preprint PDF DOI

PUL-SLAM: Path-Uncertainty Co-Optimization with Lightweight Stagnation Detection for Efficient Robotic Exploration

Yizhen Yin, Dapeng Feng, Hongbo Chen, Yuhua Qi · 2025

Existing Active SLAM methodologies face issues such as slow exploration speed and suboptimal paths. To address these limitations, we propose a hybrid framework combining a Path-Uncertainty Co-Optimiza…

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Engineering Preprint PDF DOI

Combined fluorescence and photoacoustic imaging of tozuleristide in muscle tissue in vitro -- toward optically-guided solid tumor surgery: feasibility studies

Ruibo Shang, Matthew Thompson, Matthew D. Carson, Eric J. Seibel, Matthew O'Donnell, Ivan Pelivanov · 2025

Near-infrared fluorescence (NIRF) can deliver high-contrast, video-rate, non-contact imaging of tumor-targeted contrast agents with the potential to guide surgeries excising solid tumors. However, it …

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Engineering Preprint PDF DOI

Integration of the TIAGo Robot into Isaac Sim with Mecanum Drive Modeling and Learned S-Curve Velocity Profiles

Vincent Schoenbach, Marvin Wiedemann, Raphael Memmesheimer, Malte Mosbach, Sven Behnke · 2025

Efficient physics simulation has significantly accelerated research progress in robotics applications such as grasping and assembly. The advent of GPU-accelerated simulation frameworks like Isaac Sim …

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Engineering Preprint PDF DOI

Nord-Parl-TTS: Finnish and Swedish TTS Dataset from Parliament Speech

Zirui Li, Jens Edlund, Yicheng Gu, Nhan Phan, Lauri Juvela, Mikko Kurimo · 2025

Text-to-speech (TTS) development is limited by scarcity of high-quality, publicly available speech data for most languages outside a few high-resource languages. We present Nord-Parl-TTS, an open TTS …

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Engineering Preprint PDF DOI

Relay-Based Coordination for Energy-Efficient Multi-Robot Pickup and Delivery

Alkesh K. Srivastava, Jared Michael Levin, Philip Dames · 2025

We consider the problem of delivering multiple packages from a single depot to distinct goal locations using a homogeneous fleet of robots with limited carrying capacity. We propose VCST-RCP, a Vorono…

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Engineering Preprint PDF DOI

GRATE: a Graph transformer-based deep Reinforcement learning Approach for Time-efficient autonomous robot Exploration

Haozhan Ni, Jingsong Liang, Chenyu He, Yuhong Cao, Guillaume Sartoretti · 2025

Autonomous robot exploration (ARE) is the process of a robot autonomously navigating and mapping an unknown environment. Recent Reinforcement Learning (RL)-based approaches typically formulate ARE as …

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Engineering Preprint PDF DOI

Enhancing Fatigue Detection through Heterogeneous Multi-Source Data Integration and Cross-Domain Modality Imputation

Luobin Cui, Yanlai Wu, Tang Ying, Weikai Li · 2025

Fatigue detection for human operators plays a key role in safety critical applications such as aviation, mining, and long haul transport. While numerous studies have demonstrated the effectiveness of …

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Engineering Preprint PDF DOI

Variational Quantum Latent Encoding for Topology Optimization

Alireza Tabarraei · 2025

A variational framework for structural topology optimization is developed, integrating quantum and classical latent encoding strategies within a coordinate-based neural decoding architecture. In this …

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Engineering Preprint PDF DOI

Hybrid Ensemble of Segmentation-Assisted Classification and GBDT for Skin Cancer Detection with Engineered Metadata and Synthetic Lesions from ISIC 2024 Non-Dermoscopic 3D-TBP Images

Muhammad Zubair Hasan, Fahmida Yasmin Rifat · 2025

Skin cancer is among the most prevalent and life-threatening diseases worldwide, with early detection being critical to patient outcomes. This work presents a hybrid machine and deep learning-based ap…

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Engineering Preprint PDF DOI

Reference Free Platform Adaptive Locomotion for Quadrupedal Robots using a Dynamics Conditioned Policy

David Rytz, Suyoung Choi, Wanming Yu, Wolfgang Merkt, Jemin Hwangbo, Ioannis Havoutis · 2025

This article presents Platform Adaptive Locomotion (PAL), a unified control method for quadrupedal robots with different morphologies and dynamics. We leverage deep reinforcement learning to train a s…

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Engineering Preprint PDF DOI

Model-Predictive Planning and Airspeed Regulation to Minimize Flight Energy Consumption

Trevor Karpinski, Alexander Blakesley, Jakub Krol, Bani Anvari, George Gorospe, Liang Sun · 2025

Although battery technology has advanced tremendously over the past decade, it continues to be a bottleneck for the mass adoption of electric aircraft in long-haul cargo and passenger delivery. The on…

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