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Landing site positioning and descent trajectory reconstruction of Tianwen-1 on Mars
Tianwen-1 (TW-1) is the first Chinese interplanetary mission to have accomplished orbiting, landing, and patrolling in a single exploration of Mars....
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Method for the Situational Terminal Control of a Descent Vehicle on a Skip-up Return Trajectory from the Moon
AbstractA method of situational adaptation is proposed to control the movement of the descent vehicle (DV), which, upon returning from the Moon,...
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Trajectory
Section III is focused on flight trajectory planning, execution, and monitoring, building on the air navigation fundamentals and air navigation...
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Vertical and Lateral Trajectory Coupling Method in 4D Trajectory Prediction
Four-dimension trajectory prediction is a critical technology for Trajectory-based operations (TBO). Accurate and reliable trajectory prediction...
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Mars Entry and Powered Descent Using Collaborative Optimization
This chapter employed reinforcement learning and hp-adaptive pseudospectral method to investigate the interplay between entry guidance and powered...
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Actor-critic objective penalty function method: an adaptive strategy for trajectory tracking in autonomous driving
Trajectory tracking is a key technology for controlling the autonomous vehicles effectively and stably to track the reference trajectory. How to...
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Analysis of Flight Trajectory Model Based on BADA
The aircraft trajectory model is a fundamental constraint of aircraft trajectory planning. An appropriate trajectory model can make trajectory...
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Explicit Near-Optimal Guidance and Pulse-Modulated Control for Lunar Descent and Touchdown
This research considers the descent path of a space vehicle, from periselenium of its operational orbit to the lunar surface. The trajectory is split...
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Trajectory Optimization for Manipulation Considering Grasp Selection and Adjustment
Generating motions to grasp the objects in the scene is critical in robotic manipulation. The feasibility and quality of the output trajectory are...
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VALIDATION OF LINEAR COVARIANCE ANALYSIS FOR NOVA-C CISLUNAR TRAJECTORY DESIGN
Nova-C is a lunar lander designed by the private company Intuitive Machines to deliver small commercial payloads to the surface of the Moon. The...
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Improved Gradient-descent-based Control Algorithms for Multi-agent Systems With Fixed and Switching Topology
In this paper, model free adaptive control algorithms are proposed based on ten improved gradient descent methods which are commonly used as...
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Joint User Scheduling, Trajectory, Beamforming and Power Allocation for Millimeter-Wave Full-Duplex UAV Relay
With small size, low cost and high mobility, unmanned aerial vehicles (UAVs) are playing an increasingly important role in all areas of modern...
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Online Generation of Smooth Gliding Re-entry Trajectory
Since the 21st century, the trajectory planning of hypersonic vehicles has become a major focus and difficulty of research due to their ability to...
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Optimal trajectory planning combining model-based and data-driven hybrid approaches
Trajectory planning aims at computing an optimal trajectory through the minimization of a cost function. This paper considers four different...
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Trajectory Planning and Trajectory Tracking Control Method of Unmanned Airship
Taking the unmanned airship with variable vector double engines propulsion system and X rudder surface as research object, according to the movement...
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A Hierarchical LSTM-Based Vehicle Trajectory Prediction Method Considering Interaction Information
Trajectory prediction is an essential component in autonomous driving systems, as it can forecast the future movements of surrounding vehicles,...
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Robust Trajectory Optimization for Mars Entry
A robust optimization approach for Mars entry trajectory generation under uncertainties is proposed in this chapter. The impact of the uncertainties...
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Energy efficiency maximization for UAV-enabled amplify-and-forward relaying via joint power and trajectory optimization
This paper investigates an optimization problem corresponding to energy efficiency maximization of an unmanned aerial vehicle (UAV)-enabled relaying...
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Fractional-order gradient descent with momentum for RBF neural network-based AIS trajectory restoration
In order to guarantee the integrity and accuracy of ship Automatic Identification System (AIS) data, and prevent maritime traffic accidents and make...
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EVALUATING LUNAR DESCENT AND LANDING PERFORMANCE FROM A NEAR RECTILINEAR HALO ORBIT USING LINEAR COVARIANCE RESETTING TECHNIQUES
Upcoming lunar programs are striving the achieve precision landing in a safe and robust manner. Various elements impact this mission objective...