VHF coherent radar signals from the E region ionosphere and the relationship to electron drift velocity and ion acoustic velocity [PDF]
, 2002 The Scandinavian Twin Auroral Radar Experiment (STARE) coherent radar system measures the Doppler shifts caused by ∼1 m plasma waves in the high-latitude E region ionosphere.
Nielsen, E. +2 more
core +5 more sources
Hydraulic Investigation of Triangular Plan Form Vertical Drops [PDF]
Journal of Applied Fluid MechanicsThe vertical drop is one of the most widely used hydraulic structures for dissipating the destructive energy of water. The purpose of this research is to investigate the effect of the two difference height, and five vertex angles of a triangular plan ...
M. Abar, R. Daneshfaraz, R. Norouzi
doaj +1 more source
Terminal Impact Time Control Cooperative Guidance Law for UAVs under Time-Varying Velocity
Drones, 2021 Aiming at the problem that multiple Unmanned Aerial Vehicles (UAVs) attack the stationary target cooperatively under time-varying velocity, the cooperative guidance law with finite time convergence on two-dimensional plan and the three-dimensional ...
Zhanyuan Jiang +3 more
doaj +1 more source
Research on motion planning for an indoor spray arm based on an improved potential field method.
PLoS ONE, 2020 The target spraying effect of spray robots mainly depends on the control performance of the spraying arm during the processes of aiming and tracking. To further improve the robustness of the endpoint control and positioning accuracy of the spray arm, an ...
Dongjie Zhao +5 more
doaj +1 more source
Calculation Method of the Blasting Throwing Energy and Its Variation Affected by the Burden
Applied Sciences, 2022 Precise control of casting velocity and effective throwing kinetic energy conversion efficiency in blasting engineering are challenges. To provide a theoretical basis and reference for the implementation plan and fine construction of the cast blasting ...
Yonghui Huang +5 more
doaj +1 more source
Advanced Velocity Planning for Robotic Systems
, 2020 https://youtu.be ...
Marescotti, Elia +4 more
openaire +2 more sources
Optimisasi Waktu Tempuh Pada Multi-AGV Menggunakan Particle Swarm Optimization
Jurnal Ilmiah Teknik Industri, 2016 An algorithm for velocity planning on a continuous-curvature path of a pair of automated guided vehicles (AGVs) that minimizing its travelling time is presented. A class of 3-degree Bezier curves is used as basic form of the path.
Anugrah Kusumo Pamosoaji
doaj +1 more source
Research on Method of Collision Avoidance Planning for UUV Based on Deep Reinforcement Learning
Journal of Marine Science and Engineering, 2023 A UUV can perform tasks such as underwater surveillance, reconnaissance, surveillance, and tracking by being equipped with sensors and different task modules.
Wei Gao +5 more
doaj +1 more source
Algebraic solution to minimum-time velocity planning [PDF]
International Journal of Control, Automation and Systems, 2013 The paper poses the problem of minimum-time velocity planning subject to a jerk amplitude constraint and to arbitrary velocity/acceleration boundary conditions. This problem which is relevant in the field of autonomous robotic navigation and also for inertial one-dimensional mechatronics systems is dealt with an algebraic approach based on Pontryagin’s
LINI, Gabriele +2 more
openaire +2 more sources
, 2023 This is the P and S velocity models for Changning area, Sichuan, China.
Yanna Zhao (14610218)
core +1 more source