Výsledky vyhledávání

Akademický článek

A Low-Altitude Obstacle Avoidance Method for UAVs Based on Polyhedral Flight Corridor

Autor: Zhaowei Ma, Zhongming Wang, Aitong Ma, Yunzhuo Liu, Yifeng Niu

Publikováno v: Drones, Vol 7, Iss 9, p 588 (2023)

UAVs flying in complex low-altitude environments often require real-time sensing to avoid environmental obstacles. In previous approaches, UAVs have usually carried out motion planning based on primitive navigation maps such as point clouds and raste

Externí odkaz: https://doaj.org/article/5204747de35944888c1361e308272f19

Zobrazit plný text záznamu

Akademický článek

Small-Object Detection for UAV-Based Images Using a Distance Metric Method

Autor: Helu Zhou, Aitong Ma, Yifeng Niu, Zhaowei Ma

Publikováno v: Drones, Vol 6, Iss 10, p 308 (2022)

Object detection is important in unmanned aerial vehicle (UAV) reconnaissance missions. However, since a UAV flies at a high altitude to gain a large reconnaissance view, the captured objects often have small pixel sizes and their categories have hig

Externí odkaz: https://doaj.org/article/31069bb0440b47e6a1babe25077a8853

Zobrazit plný text záznamu

Akademický článek

Stereo Vision Guiding for the Autonomous Landing of Fixed-Wing UAVs: A Saliency-Inspired Approach

Autor: Zhaowei Ma, Tianjiang Hu, Lincheng Shen

Publikováno v: International Journal of Advanced Robotic Systems, Vol 13 (2016)

It is an important criterion for unmanned aerial vehicles (UAVs) to land on the runway safely. This paper concentrates on stereo vision localization of a fixed-wing UAV's autonomous landing within global navigation satellite system (GNSS) denied envi

Externí odkaz: https://doaj.org/article/12bc022393464ccaaa72f0277d1e349d

Zobrazit plný text záznamu

Akademický článek

Evaluating the Fin-Ray Trajectory Tracking of Bio-Inspired Robotic Undulating Fins via an Experimental-Numerical Approach

Autor: Xiaojia Xiang, Tianjiang Hu, Han Zhou, Zhaowei Ma

Publikováno v: International Journal of Advanced Robotic Systems, Vol 11 (2014)

In the past decade, biomimetic undulating fin propulsion has been one of the main topics considered by scientists and researchers in the field of robotic fish. This technology is inspired by the biological wave-like propulsion of ribbon-finned fish.

Externí odkaz: https://doaj.org/article/f92e532069074f56b3163cc789443ec7

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání