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Robust topology optimization (RTO) improves the robustness of designs with respect to random sources in real-world structures, yet an accurate sensitivity analysis requires the solution of many systems of equations at each optimization…

计算工程、金融与科学 · 计算机科学 2020-09-01 Weichen Li , Xiaojia Shelly Zhang

Precision space inertial sensors are imperative for Earth geodesy missions, gravitational wave observations, and fundamental physics experiments in space. In these missions, free-falling test masses(TMs) are susceptible to parasitic…

仪器与探测器 · 物理学 2024-12-16 Fangchao Yang , Wei Hong , Yujie Zhao

Autonomous hazard detection and avoidance is a key technology for future landing missions in unknown surface conditions. Current state-of-the-art stochastic algorithms assume simple Gaussian measurement noise on dense, high-fidelity digital…

机器人学 · 计算机科学 2023-05-09 Kento Tomita , Koki Ho

In recent years, machine learning models, chiefly deep neural networks, have revealed suited to learn accurate energy-density functionals from data. However, problematic instabilities have been shown to occur in the search of ground-state…

计算物理 · 物理学 2024-09-26 Emanuele Costa , Giuseppe Scriva , Sebastiano Pilati

Highly accurate real-time localization is of fundamental importance for the safety and efficiency of planetary rovers exploring the surface of Mars. Mars rover operations rely on vision-based systems to avoid hazards as well as plan safe…

机器人学 · 计算机科学 2019-12-17 Jared Strader , Kyohei Otsu , Ali-akbar Agha-mohammadi

It is generally considered that a trustworthy autonomous planetary exploration rover must be able to operate safely and effectively within its environment. Central to trustworthy operation is the ability for the rover to recognise and…

机器人学 · 计算机科学 2024-07-08 Sarah Swinton , Euan McGookin , Douglas Thomson

Missing data is a recurrent and challenging problem, especially when using machine learning algorithms for real-world applications. For this reason, missing data imputation has become an active research area, in which recent deep learning…

机器学习 · 计算机科学 2021-07-01 Simon Tihon , Muhammad Usama Javaid , Damien Fourure , Nicolas Posocco , Thomas Peel

With substantial recent developments in aviation technologies, Unmanned Aerial Vehicles (UAVs) are becoming increasingly integrated in commercial and military operations internationally. Research into the applications of aircraft data is…

机器学习 · 计算机科学 2022-03-10 Victoria Bell1 , Divish Rengasamy , Benjamin Rothwell , Grazziela P Figueredo

This paper presents the Mars Dust Storm Detector (MDSD), a system that leverages the THz Opportunistic Integrated Sensing and Communications (OISAC) signals between Mars surface assets (rovers and landers) to extract environmental…

信号处理 · 电气工程与系统科学 2024-12-17 Haofan Dong , Ozgur B. Akan

Using Gaussian Process regression to analyze the Martian surface methane Tunable Laser Spectrometer (TLS) data reported by Webster (2018), we find that the TLS data, taken as a whole, are not statistically consistent with seasonal…

地球与行星天体物理 · 物理学 2019-11-06 Ed Gillen , Paul B Rimmer , David C Catling

Along with the fast evolution of deep neural networks, the hardware system is also developing rapidly. As a promising solution achieving high scalability and low manufacturing cost, multi-accelerator systems widely exist in data centers,…

分布式、并行与集群计算 · 计算机科学 2023-07-25 Guan Shen , Jieru Zhao , Zeke Wang , Zhe Lin , Wenchao Ding , Chentao Wu , Quan Chen , Minyi Guo

This work presents a global-to-local, task-aware fault detection and identification (FDI) framework for multi-spacecraft systems conducting collaborative inspection missions in low Earth orbit. The inspection task is represented by a global…

系统与控制 · 电气工程与系统科学 2025-11-13 Akshita Gupta , Arna Bhardwaj , Yashwanth Kumar Nakka , Changrak Choi , Amir Rahmani

Unmanned aircraft systems (UAS) are being increasingly adopted for various applications. The risk UAS poses to people and property must be kept to acceptable levels. This paper proposes risk-aware contingency management autonomy to prevent…

机器人学 · 计算机科学 2023-04-04 Prashin Sharma , Benjamin Kraske , Joseph Kim , Zakariya Laouar , Zachary Sunberg , Ella Atkins

The development of deep learning methods for magnetic resonance spectroscopy (MRS) is often hindered by limited availability of large, high-quality training datasets. While physics-based simulations are commonly used to mitigate this…

We present an approach to enhance wheeled planetary rover dead-reckoning localization performance by leveraging the use of zero-type constraint equations in the navigation filter. Without external aiding, inertial navigation solutions…

机器人学 · 计算机科学 2020-03-27 Cagri Kilic , Jason N. Gross , Nicholas Ohi , Ryan Watson , Jared Strader , Thomas Swiger , Scott Harper , Yu Gu

Depth estimation plays a great potential role in obstacle avoidance and navigation for further Mars exploration missions. Compared to traditional stereo matching, learning-based stereo depth estimation provides a data-driven approach to…

计算机视觉与模式识别 · 计算机科学 2025-06-17 Junjie Li , Jiawei Wang , Miyu Li , Yu Liu , Yumei Wang , Haitao Xu

We present a concept for using a polarization sensitive multispectral lidar to map the seasonal distribution and exchange of volatiles among the reservoirs of the Martian surface and atmosphere. The LIDAR instrument will be a…

Autonomous Driving Systems (ADSs) are complex Cyber-Physical Systems (CPSs) that must ensure safety even in uncertain conditions. Modern ADSs often employ Deep Neural Networks (DNNs), which may not produce correct results in every possible…

软件工程 · 计算机科学 2024-09-09 Jon Ayerdi , Asier Iriarte , Pablo Valle , Ibai Roman , Miren Illarramendi , Aitor Arrieta

Mapping and exploration of a Martian terrain with an aerial vehicle has become an emerging research direction, since the successful flight demonstration of the Mars helicopter Ingenuity. Although the autonomy and navigation capability of…

Although communication delays can disrupt multiagent systems, most of the existing multiagent trajectory planners lack a strategy to address this issue. State-of-the-art approaches typically assume perfect communication environments, which…