Rendezvous
View article: Radiation damage to the Hubble Space Telescope during two Solar cycles, and correction of Charge Transfer Inefficiency using ArCTIc
Radiation damage to the Hubble Space Telescope during two Solar cycles, and correction of Charge Transfer Inefficiency using ArCTIc Open
From 2002 to 2025, the Hubble Space Telescope’s Advanced Camera for Surveys has suffered in the harsh radiation environment above the protection of the Earth’s atmosphere. We track the degradation of its image quality, as Solar protons and…
View article: Oscillating Plateau Fingerprints and P-Lane Positioning Pad Under a Fixed G--Sigma--P--L Contract
Oscillating Plateau Fingerprints and P-Lane Positioning Pad Under a Fixed G--Sigma--P--L Contract Open
In line with other recent G--Sigma--P--L articles, this manuscript is part of an evolving sequence that is moving toward a more unified and falsifiable control grammar, rather than a single point-to-point result. This installment focuses o…
View article: Oscillating Plateau Fingerprints and P-Lane Positioning Pad Under a Fixed G--Sigma--P--L Contract
Oscillating Plateau Fingerprints and P-Lane Positioning Pad Under a Fixed G--Sigma--P--L Contract Open
In line with other recent G--Sigma--P--L articles, this manuscript is part of an evolving sequence that is moving toward a more unified and falsifiable control grammar, rather than a single point-to-point result. This installment focuses o…
View article: Semantic Trajectory Generation for Goal-Oriented Spacecraft Rendezvous
Semantic Trajectory Generation for Goal-Oriented Spacecraft Rendezvous Open
Reliable real-time trajectory generation is essential for future autonomous spacecraft. While recent progress in nonconvex guidance and control is paving the way for onboard autonomous trajectory optimization, these methods still rely on e…
View article: Semantic Trajectory Generation for Goal-Oriented Spacecraft Rendezvous
Semantic Trajectory Generation for Goal-Oriented Spacecraft Rendezvous Open
Reliable real-time trajectory generation is essential for future autonomous spacecraft. While recent progress in nonconvex guidance and control is paving the way for onboard autonomous trajectory optimization, these methods still rely on e…
View article: A Randomized Scheduling Framework for Privacy-Preserving Multi-robot Rendezvous given Prior Information
A Randomized Scheduling Framework for Privacy-Preserving Multi-robot Rendezvous given Prior Information Open
Privacy has become a critical concern in modern multi-robot systems, driven by both ethical considerations and operational constraints. As a result, growing attention has been directed toward privacy-preserving coordination in dynamical mu…
View article: TNI & TNI-R: Transient Node Integration for Precision Orbital Navigation and Autonomous Refueling using Starlink Laser Mesh
TNI & TNI-R: Transient Node Integration for Precision Orbital Navigation and Autonomous Refueling using Starlink Laser Mesh Open
Transient Node Integration (TNI) allows launch vehicles and Starships to temporarily integrate with the Starlink laser network to achieve navigation <30 mm / <1 mm/s in real time, eliminating almost all orbital insertion correction budget …
View article: TNI & TNI-R: Transient Node Integration for Precision Orbital Navigation and Autonomous Refueling using Starlink Laser Mesh
TNI & TNI-R: Transient Node Integration for Precision Orbital Navigation and Autonomous Refueling using Starlink Laser Mesh Open
Transient Node Integration (TNI) allows launch vehicles and Starships to temporarily integrate with the Starlink laser network to achieve navigation <30 mm / <1 mm/s in real time, eliminating almost all orbital insertion correction budget …
View article: A Randomized Scheduling Framework for Privacy-Preserving Multi-robot Rendezvous given Prior Information
A Randomized Scheduling Framework for Privacy-Preserving Multi-robot Rendezvous given Prior Information Open
Privacy has become a critical concern in modern multi-robot systems, driven by both ethical considerations and operational constraints. As a result, growing attention has been directed toward privacy-preserving coordination in dynamical mu…
View article: "Multi-Fault Dataset for Multirotor UAVs with Single- and Double-Magnitude Faults"
"Multi-Fault Dataset for Multirotor UAVs with Single- and Double-Magnitude Faults" Open
"Reliable fault diagnosis is crucial for the safe operation of multirotor unmanned aerial vehicles (UAVs), yet publicly available datasets that include multiple simultaneous faults and explicit fault severity information remain limited. Th…
View article: Sequential Convex Programming for Multimode Spacecraft Trajectory Optimization
Sequential Convex Programming for Multimode Spacecraft Trajectory Optimization Open
Spacecraft equipped with multiple propulsion modes or systems can offer enhanced performance and mission flexibility compared with traditional configurations. Despite these benefits, the trajectory optimization of spacecraft utilizing such…
View article: Sequential Convex Programming for Multimode Spacecraft Trajectory Optimization
Sequential Convex Programming for Multimode Spacecraft Trajectory Optimization Open
Spacecraft equipped with multiple propulsion modes or systems can offer enhanced performance and mission flexibility compared with traditional configurations. Despite these benefits, the trajectory optimization of spacecraft utilizing such…
View article: URPD-Based Optimization of Nuclear Fusion Reactors: Informational Geometry for Confinement, Turbulence, Energy Dissipation, and Quantum Tunneling
URPD-Based Optimization of Nuclear Fusion Reactors: Informational Geometry for Confinement, Turbulence, Energy Dissipation, and Quantum Tunneling Open
Unified Relational Projection Dynamics (URPD) offers a geometric, information-theoretic framework for improving the design and performance of nuclear fusion reactors.In this approach, magnetic confinement, plasma turbulence, energy dissipa…
View article: URPD-Based Optimization of Nuclear Fusion Reactors: Informational Geometry for Confinement, Turbulence, Energy Dissipation, and Quantum Tunneling
URPD-Based Optimization of Nuclear Fusion Reactors: Informational Geometry for Confinement, Turbulence, Energy Dissipation, and Quantum Tunneling Open
Unified Relational Projection Dynamics (URPD) offers a geometric, information-theoretic framework for improving the design and performance of nuclear fusion reactors.In this approach, magnetic confinement, plasma turbulence, energy dissipa…
View article: Precut Papillotomy versus EUS-Guided Rendezvous in Difficult Biliary Cannulation for Malignant Distal Biliary Obstruction: Time to Think Outside the Box?
Precut Papillotomy versus EUS-Guided Rendezvous in Difficult Biliary Cannulation for Malignant Distal Biliary Obstruction: Time to Think Outside the Box? Open
The rates of difficult biliary cannulation (DBC) while attempting endoscopic retrograde cholangiopancreatography (ERCP) go up to 11% even in experienced hands. Salvage techniques such as the double guidewire technique, precut papillotomy (…
View article: Trajectory Planning Method for Multi-UUV Formation Rendezvous in Obstacle and Current Environments
Trajectory Planning Method for Multi-UUV Formation Rendezvous in Obstacle and Current Environments Open
Formation rendezvous is a critical phase during the deployment or recovery of multiple unmanned underwater vehicles (UUVs) in cooperative missions, and represents one of the core problems in multi-UUV cooperative planning. In practical mar…
View article: Blind Rendezvous Distributed Hash Table for Anonymous Peer Discovery
Blind Rendezvous Distributed Hash Table for Anonymous Peer Discovery Open
Anonymous Peer Discovery in Peer-to-Peer Networks and Distributed Systems is still a challenging problem because existing Distributed Hash Tables (DHTs) inherently reveal both the routing and the metadata of participation. This work presen…
View article: Blind Rendezvous Distributed Hash Table for Anonymous Peer Discovery
Blind Rendezvous Distributed Hash Table for Anonymous Peer Discovery Open
Anonymous Peer Discovery in Peer-to-Peer Networks and Distributed Systems is still a challenging problem because existing Distributed Hash Tables (DHTs) inherently reveal both the routing and the metadata of participation. This work presen…
View article: Harmonic Vault Propulsion and Orchestration System
Harmonic Vault Propulsion and Orchestration System Open
Application # 19/273,229 Patent Pending Abstract[0001] A propulsion and orchestration system is disclosed that enables motion, coordination, and symbolic continuity through terrain-synchronized harmonic impulse modulation. The system compr…
View article: Harmonic Vault Propulsion and Orchestration System
Harmonic Vault Propulsion and Orchestration System Open
Application # 19/273,229 Patent Pending Abstract[0001] A propulsion and orchestration system is disclosed that enables motion, coordination, and symbolic continuity through terrain-synchronized harmonic impulse modulation. The system compr…
View article: Harmonic Vault Propulsion and Orchestration System
Harmonic Vault Propulsion and Orchestration System Open
Application # 19/273,229 Patent Pending Abstract[0001] A propulsion and orchestration system is disclosed that enables motion, coordination, and symbolic continuity through terrain-synchronized harmonic impulse modulation. The system compr…
View article: PSE-IBNK v1.3: Precession-Swept Electrodynamic Tether Debris Removal with Sublinear Cost Scaling - Technical White Paper
PSE-IBNK v1.3: Precession-Swept Electrodynamic Tether Debris Removal with Sublinear Cost Scaling - Technical White Paper Open
Comprehensive technical architecture for orbital debris remediation addressing documented impossibilities in propulsive active debris removal systems. Three fundamental constraints quantified: (1) Economic Impossibility - propulsive ADR re…
View article: PSE-IBNK v1.3: Precession-Swept Electrodynamic Tether Debris Removal with Sublinear Cost Scaling - Technical White Paper
PSE-IBNK v1.3: Precession-Swept Electrodynamic Tether Debris Removal with Sublinear Cost Scaling - Technical White Paper Open
Comprehensive technical architecture for orbital debris remediation addressing documented impossibilities in propulsive active debris removal systems. Three fundamental constraints quantified: (1) Economic Impossibility - propulsive ADR re…
View article: Blind Rendezvous Distributed Hash Table for Anonymous Peer Discovery
Blind Rendezvous Distributed Hash Table for Anonymous Peer Discovery Open
Anonymous Peer Discovery in Peer-to-Peer Networks and Distributed Systems is still a challenging problem because existing Distributed Hash Tables (DHTs) inherently reveal both the routing and the metadata of participation. This work presen…
View article: Intermittent Rendezvous Plans with Mixed Integer Linear Program for Large-Scale Multi-Robot Exploration
Intermittent Rendezvous Plans with Mixed Integer Linear Program for Large-Scale Multi-Robot Exploration Open
Multi-Robot Exploration (MRE) systems with communication constraints have proven efficient in accomplishing a variety of tasks, including search-and-rescue, stealth, and military operations. While some works focus on opportunistic approach…
View article: Intermittent Rendezvous Plans with Mixed Integer Linear Program for Large-Scale Multi-Robot Exploration
Intermittent Rendezvous Plans with Mixed Integer Linear Program for Large-Scale Multi-Robot Exploration Open
Multi-Robot Exploration (MRE) systems with communication constraints have proven efficient in accomplishing a variety of tasks, including search-and-rescue, stealth, and military operations. While some works focus on opportunistic approach…
View article: Mixed-Integer Linear Programming Models for the Vehicle Routing Problem with Release Times and Reloading at Mobile Satellites
Mixed-Integer Linear Programming Models for the Vehicle Routing Problem with Release Times and Reloading at Mobile Satellites Open
The Vehicle Routing Problem (VRP) is central to last-mile logistics, yet a gap remains when products have late release times and vehicles can be reloaded en route via mobile satellites that rendezvous with reloading vehicles at customer lo…
View article: Incorporating the nonlinearity index into adaptive-mesh sequential convex optimization for minimum-fuel low-thrust trajectory design
Incorporating the nonlinearity index into adaptive-mesh sequential convex optimization for minimum-fuel low-thrust trajectory design Open
Successive convex programming (SCP) is a powerful class of direct optimization methods, known for its polynomial complexity and computational efficiency, making it particularly suitable for autonomous applications. Direct methods are also …
View article: Incorporating the nonlinearity index into adaptive-mesh sequential convex optimization for minimum-fuel low-thrust trajectory design
Incorporating the nonlinearity index into adaptive-mesh sequential convex optimization for minimum-fuel low-thrust trajectory design Open
Successive convex programming (SCP) is a powerful class of direct optimization methods, known for its polynomial complexity and computational efficiency, making it particularly suitable for autonomous applications. Direct methods are also …
View article: The Zero Initial Guess Algorithm for Low-Thrust Trajectory Optimization with Its Application in Cislunar Space
The Zero Initial Guess Algorithm for Low-Thrust Trajectory Optimization with Its Application in Cislunar Space Open
In this paper, a trajectory optimization method without an initial value guess is proposed. The method employs the Lagrange multipliers from the nonlinear programming process to estimate the costate of the optimal control problem. It utili…