Searched for: subject%3A%22guidance%22
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Atmaca, D. (author), Pontani, Mauro (author)
This research describes a near-optimal feedback guidance, based on nonlinear orbit control, for low-thrust Earth orbit transfers. Lyapunov stability theory leads to proving that although several equilibria exist, only the desired operational conditions are associated with a stable equilibrium. This ensures quasi-global asymptotic convergence...
journal article 2024
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Mahajan, N. (author), Hegyi, A. (author), Hoogendoorn, S.P. (author), van Arem, B. (author)
Drivers initiate a discretionary lane change when they perceive an anticipated improvement in their own driving condition from moving to another lane. However, such a lane change can slow down other vehicles on the target lane, and even worse initiate a disturbance. In this work, we argue that the blocking effect triggered by individual lane...
journal article 2024
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Brito Lima, Pedro (author)
This thesis explores the feasibility of aerocapture manoeuvres at Venus, focusing on the challenges for an autonomous Guidance and Control (G&C) system, including a partial Navigation system simulation. Aerocapture leverages atmospheric drag for orbit insertion and presents a cost-effective alternative to traditional propulsive methods. The...
master thesis 2023
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Guo, Jiayi (author)
With the steadily increasing road traffic demand, congestion on freeways has become a major problem. With the development of communication technology and automated vehicles, there are more opportunities for DTMs to be studied extensively at the coordination level and cooperation level. In the existing literature, the coordination of RM (ramp...
master thesis 2023
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Overbeek, Lucas (author)
The emergence of tactile technologies has paved the way for addressing various challenges. Tactile sensing is especially vital for the blind and visually impaired. This study investigates how tactile feedback can enhance mobility and independence among individuals in this community. In today’s touchscreen-dominated world, accessibility remains a...
master thesis 2023
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Dutruel, Benjamin (author)
The startup Rocket Factory Augsburg (RFA) is developing the RFA ONE orbital launch vehicle. A significant hurdle for its closed-loop guidance is the need to fully deplete the third stage for insertion during the first flight, which results in lengthy burn-arcs and complexity not managed properly by traditional guidance algorithms. Additionally,...
master thesis 2023
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Boersma, Caspar (author)
Robots can aid in post-stroke motor function recovery and motor learning through the use of haptic feedback during collaborative training. A clear objective in robotic-assisted motor learning is to adapt the haptic feedback to individual users, but personal characteristics are not yet considered in this adaptation. <br/><br/>We investigated the...
master thesis 2023
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Benmahdjoub, Mohamed (author), Thabit, Abdullah (author), Van Veelen, Marie Lise C. (author), Niessen, W.J. (author), Wolvius, Eppo B. (author), Van Walsum, Theo (author)
Augmented reality (AR) has shown potential in computer-aided surgery. It allows for the visualization of hidden anatomical structures as well as assists in navigating and locating surgical instruments at the surgical site. Various modalities (devices and/or visualizations) have been used in the literature, but few studies investigated the...
journal article 2023
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Calvert, S.C. (author), van den Burg, Bastiaan D. (author), Taale, Henk (author)
Route guidance in traffic management aims to improve traffic network performance aligned with a system optimum. However, service providers commonly offer user optimum travel advice that can negatively impact centralized route guidance. This paper quantifies and demonstrates the impact of different policy strategies for a centralized route...
conference paper 2023
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Kousa, C. (author), Lubelli, B. (author), Pottgiesser, U. (author)
Reconstruction and recovery of historic cities after destruction due to conflict or natural disasters have gained increasing relevance in the last decades. The investigation of international examples of recovery after war or natural catastrophic events can provide knowledge for improving guidance and strategies for sustainable reconstruction/...
journal article 2023
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Atmaca, D. (author), Pontani, Mauro (author)
This research proposes a near-optimal feedback guidance based on nonlinear control for low-thrust Earth orbit transfers. For the numerical simulations, two flight conditions are defined: (i) nominal conditions and (ii) nonnominal conditions that account for the orbit injection errors and the stochastic failures of the propulsion system....
conference paper 2023
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Wang, X. (author)
Unmanned Aerial Vehicles (UAVs) have been emerging as a promising but challenging platform for studying autonomous and cooperative control. This Ph.D. thesis focuses on fixed-wing UAVs which, with their more efficient aerodynamics, can ensure longer flight durations and more autonomy than multi-rotorUAVs. However, in the current state of the art...
doctoral thesis 2022
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Conings, Vincent (author)
To ensure long-term sustainable access to space, it is of paramount importance that humankind acts to alleviate the space debris problem in near vicinity of Earth. The most effective mitigation strategy for large debris items is provided by active debris removal missions, which remove one or more resident space objects from orbit. The execution...
master thesis 2022
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Draukšas, Simonas (author)
Bicycle safety is quickly becoming an increasingly important field as the number of electric bicycles on the streets grows faster each year. E-bikes are able to accelerate quicker and travel at faster speeds than conventional bicycles, increasing the severity of injuries in case of an accident. There are a number of ways to improve safety, such...
master thesis 2022
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van der Ploeg, Stijn (author)
The spine is an intricate and crucial part of the human body. Unfortunately, spinal conditions such as scoliosis and trauma can cause instability and deformity to the spine. Patients can experience discomfort and pain. Spinal fusion surgery is used to repair and correct severe cases. During this procedure the vertebrae are fused to prevent them...
master thesis 2022
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Zhang, D. (author), Ding, Er (author), Bluyssen, P.M. (author)
Since the COVID-19 pandemic, the ventilation of school buildings has attracted considerable attention from the general public and researchers. However, guidance to assess the ventilation performance in classrooms, especially during a pandemic, is still lacking. Therefore, aiming to fill this gap, this study conducted a full-scale laboratory...
journal article 2022
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Zhang, D. (author), Ding, Er (author), Bluyssen, P.M. (author)
Several recent studies have demonstrated that ventilation plays an important role in the transmission of SARS-CoV-2 (the coronavirus that causes COVID-19) in public buildings, such as schools. However, there are no clear rules on how to assess the ventilation performance in classrooms, especially during a pandemic. Therefore, the main objective...
conference paper 2022
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Zhou, Y. (author), Ho, H.W. (author)
Hierarchical Reinforcement Learning (HRL) provides an option to solve complex guidance and navigation problems with high-dimensional spaces, multiple objectives, and a large number of states and actions. The current HRL methods often use the same or similar reinforcement learning methods within one application so that multiple objectives can...
journal article 2022
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Thabit, Abdullah (author), Benmahdjoub, Mohamed (author), van Veelen, Marie Lise C. (author), Niessen, W.J. (author), Wolvius, Eppo B. (author), van Walsum, T. (author)
Purpose: In minimally invasive spring-assisted craniectomy, surgeons plan the surgery by manually locating the cranial sutures. However, this approach is prone to error. Augmented reality (AR) could be used to visualize the cranial sutures and assist in the surgery planning. The purpose of our work is to develop an AR-based system to...
journal article 2022
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Boekestijn, Imke (author), Azargoshasb, Samaneh (author), van Oosterom, Matthias N. (author), Slof, Leon J. (author), Dibbets-Schneider, Petra (author), Dankelman, J. (author), van Erkel, Arian R. (author), Rietbergen, Daphne D.D. (author), van Leeuwen, Fijs W.B. (author)
Purpose: Navigational strategies create a scenario whereby percutaneous needle-based interventions of the liver can be guided using both pre-interventional 3D imaging datasets and dynamic interventional ultrasound (US). To score how such technologies impact the needle placement process, we performed kinematic analysis on different user groups...
journal article 2022
Searched for: subject%3A%22guidance%22
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