A Machine Learning Enhanced Algorithm for the Optimal Landing Problem [PDF]
arXiv, 2022 We propose a machine learning enhanced algorithm for solving the optimal landing problem. Using Pontryagin's minimum principle, we derive a two-point boundary value problem for the landing problem. The proposed algorithm uses deep learning to predict the optimal landing time and a space-marching technique to provide good initial guesses for the ...
arxiv
Hundred Drones Land in a Minute [PDF]
arXiv, 2020 Currently, drone research and development has received significant attention worldwide. Particularly, delivery services employ drones as it is a viable method to improve delivery efficiency by using a several unmanned drones. Research has been conducted to realize complete automation of drone control for such services.
arxiv
Land Cover Mapping in Limited Labels Scenario: A Survey [PDF]
arXiv, 2021 Land cover mapping is essential for monitoring global environmental change and managing natural resources. Unfortunately, traditional classification models are plagued by limited training data available in existing land cover products and data heterogeneity over space and time.
arxiv
HALO: Hazard-Aware Landing Optimization for Autonomous Systems [PDF]
arXiv, 2023 With autonomous aerial vehicles enacting safety-critical missions, such as the Mars Science Laboratory Curiosity rover's landing on Mars, the tasks of automatically identifying and reasoning about potentially hazardous landing sites is paramount. This paper presents a coupled perception-planning solution which addresses the hazard detection, optimal ...
arxiv
Conceptual Design of Mars Lander with Novel Impact Intriguing System [PDF]
arXiv, 2018 Landing robotic spacecrafts and humans on Mars has become one of the inevitable technological necessities for humans. Effectuating perfect Mars expedition requires landing of enormous cargoes, crewed modules, ascent vehicles, and scientific laboratories. Crash-landing destructs landing modules due to a lack of adequate impact absorbers.
arxiv
Robust Fuel-Optimal Landing Guidance for Hazardous Terrain using Multiple Sliding Surfaces [PDF]
In any spacecraft landing mission, fuel-efficient precision soft landing while avoiding nearby hazardous terrain is of utmost importance. Very few existing literature have attempted addressing both the problems of precision soft landing and terrain avoidance simultaneously. To this end, an optimal terrain avoidance landing guidance (OTALG) was recently
arxiv +1 more source
A Landing Theorem for Periodic Dynamic Rays for Transcendental Entire Maps with Bounded Post-Singular Set [PDF]
arXiv, 2014 In this article, we present a landing theorem for periodic dynamic rays for transcendental entire maps which have bounded post-singular sets, by using standard hyperbolic geometry results.
arxiv
Bayesian reconstruction of past land-cover from pollen data: model robustness and sensitivity to auxiliary variables [PDF]
arXiv, 2017 Realistic depictions of past land cover are needed to investigate prehistoric environmental changes, effects of anthropogenic deforestation, and long term land cover-climate feedbacks. Observation based reconstructions of past land cover are rare and commonly used model based reconstructions exhibit considerable differences.
arxiv
A Precision Drone Landing System using Visual and IR Fiducial Markers and a Multi-Payload Camera [PDF]
arXivWe propose a method for autonomous precision drone landing with fiducial markers and a gimbal-mounted, multi-payload camera with wide-angle, zoom, and IR sensors. The method has minimal data requirements; it depends primarily on the direction from the drone to the landing pad, enabling it to switch dynamically between the camera's different sensors and
arxiv
The pulse of the city through Twitter: relationships between land use and spatiotemporal demographics [PDF]
arXiv, 2017 Social network data offer interesting opportunities in urban studies. In this study, we used Twitter data to analyse city dynamics over the course of the day. Users of this social network were grouped according to city zone and time slot in order to analyse the daily dynamics of the city and the relationship between this and land use.
arxiv