The performance of the Eulerian gyrokinetic-Maxwell solver code GYRO is analyzed on five high performance computing systems. First, a manual approach is taken, using custom scripts to analyze the output of embedded wallclock timers, floating point operation counts collected using hardware performance counters, and traces of user and communication events collected using the profiling interface t...

submitted to IEEE ICOPS’99, June 20-24, 1999, Monterey, CA Analytical Theory of Multi-Stage Gyro-Amplifiers G.S. Nusinovich University of Maryland, College Park, Md 20742-3511 and B. Levush Naval Research Laboratory, Washington, DC 20375-5000 Nowadays there is an active development of high-power, largebandwidth, high-gain gyro-amplifiers for various applications. Design of such amplifiers is us...

The paper deals with the navigation system of a hybrid service robot intended for outdoor applications. The system uses different navigation sensors depending the current situation and task being done. The main sensors are laser range finder, GPS and heading gyro.

Complex motions like kicking a ball into the goal are becoming more important in RoboCup leagues such as the Standard Platform League. Thus, there is a need for motion sequences that can be parameterized and changed dynamically. This paper presents a motion engine that translates motions into joint angles by using trajectories. These motions are defined as a set of Bezier curves that can be cha...

It is well known that complete attitude control of a spacecraft is not possible with only one single-gimbal Variable-Speed Control Moment Gyro (VSCMG) due to the conservation of the angular momentum. However, partial attitude control without violating the angular momentum conservation principle is still possible. In this paper, feedback controllers that stabilize the angular velocity vector of ...

International Journal of Systems Science Publication details, including instructions for authors and subscription information: http://www.informaworld.com/smpp/title~content=t713697751 Real-time neural-network-based control of a gyro-mirror line-of-sight stabilization platform T. H. Lee a; S. S. Ge a; C. C. Hang a; Q. Zhao a; A. S. Au a a Department of Electrical Engineering, National Universit...

1 Attitude determination method using single-antenna GPS, Gyro and Magnetometer Heekwon No, Am Cho, Youngmin Han, Hongki Song, Ojong Kim, Sungyong Lee, Deokhwa Han and Changdon Kee Seoul National University, Mechanical and Aerospace Engineering Dept., Seoul, Korea Korea Aerospace Research Institute, Daejeon, Korea Hyundai Motor Company, Driving Assistance System Development Team, Seoul, Korea -...

Gyroscopes are instruments capable of sensing changes in their inertial orientation. Satellites usually have gyroscopes within their Attitude and Orbit Control System as attitude (orientation) sensors that measure angular displacements. They are critical components and constantly monitored during the duration of the mission. In face of serious failures, proper corrective actions are possible, b...