This paper introduces a new approach for efficient rectangular boundary surveillance guidance for unmanned aerial vehicles (UAVs) using a continuous-curvature path described by a Lamé curve. Curvature and path length characteristics of the Lamé curve ...

Topological connectivity, which is the minimum requirement for a swarm to cooperate, was exploited to design control strategies for satellite swarm-keeping. Low fuel consumption is expected to be achieved by imposing only this minimum requirement on the ...

The compound multibody aircraft, created through flexible wingtip docking of multiple unit aircraft, not only capitalizes on high aerodynamic efficiency, but also holds the potential for in-flight reconfiguration. This study addresses the challenges of ...

This paper addresses the task of sensor selection over a finite time horizon for systems modeled via discrete-time, linear state-space representations. Our method for this general linear setting accommodates both spatial and temporal noise correlations. ...

The present work deals with accessibility analysis and robust controller design of dual-spin projectiles (DSPs). Applying linear controllability checks to a nonlinear system by linearizing about the operating points may prove inconclusive while examining ...

Optimal sliding Gaussian control of a quadrotor aerial vehicle with a flexible structure has been demonstrated in six-degree-of-freedom flight simulation to be more robust to structural excitation than a standard proportional-derivative control scheme. A ...

Lags between pilot inputs and aircraft responses may lead to a pilot–vehicle system entering into a pilot-induced oscillation. A model reference control element can compensate for these lags, avoiding pilot-induced oscillations and improving tracking ...

Approaching a target from a desired heading is crucial for various modern applications. Existing literature mostly addresses terminal angle-constrained guidance for stationary targets, which also includes strategies for achieving the entire angular ...

This paper presents the development of a novel life-extending control scheme for critical helicopter components subjected to significant fatigue loading. The primary objective is to synthesize a more efficient and less conservative life-extending control ...

Sequential convex programming (SCP) has been gaining popularity for space trajectory optimization. However, application of SCP for solar-sail trajectory optimization has suffered from the nonlinear coupling between the magnitude and direction of solar ...

A major challenge in homing guidance is that accurately predicting the time to go for missiles is generally difficult, which limits the practical application of a certain class of guidance laws with impact-time constraints or cooperative capabilities. To ...

A novel method for solving Lambert’s problem based around the universal variable formulation is presented. By extending the transfer time function into the complex plane, an exact solution is derived for Lambert’s boundary value problem. This solution is ...

Autonomous spacecraft proximity operations represent a key enabler for future mission architectures such as in-orbit servicing, active debris removal, object inspection, and in-orbit assembly. This work addresses safety concepts for the relative ...

This paper presents an aerodynamic parameter identification method for morphing aircraft through physics-informed transfer learning. The basic configuration of the morphing aircraft is first identified using physics-informed neural networks (PINN), which ...

The capacity to keep a desired topology with a requested accuracy plays a significant role in every spacecraft formation-flying operation. These missions can be terminated in case of an unexpected spacecraft fault, preventing the system from returning to ...

Tisserand-leveraging transfers (TILTs) were proposed as techniques to achieve an endgame tour with small orbit insertion maneuvers and short flight times in low-energy regions of the planar, circular, restricted three-body problem. This paper presents a ...

This paper presents a new heat-equation-based smoothing homotopy method for solving nonlinear optimal control problems with the indirect method. The surrogates, derived from the heat equation solution, are first incorporated into the necessary conditions ...

This work introduces a novel geometric-rule-based guidance strategy that simultaneously uses information from N(>2) reference points to generate a path that passes through convexly placed waypoints. This geometric rule is built on the formulation principle of ...

This paper investigates the leader-following attitude consensus problem for a multiple-spacecraft system. Based on Lyapunov theory and homogeneous technique, quaternion-based hybrid globally finite-time feedback coordination controllers are proposed when ...