Takuya Yamawaki

  • Citations Per Year
Learn More
Optical devices in free-space laser communication systems are affected by their environment, particularly in relation to the effects of temperature while in orbit. The mutual alignment error between the transmitted and received optical axes is caused by deformation of the optics due to temperature variation in spite of the common optics used for(More)
In recent years cellular automata (CA) have been establishing increasing interests in the study of modeling and simulating non-linear phenomena occurring in biology, chemistry, ecology, economy, geology, mechanical engineering, medicine, physics, sociology, public traffic, etc. Cellular automata are considered to be a nice model of complex systems in which(More)
The firing squad synchronization problem on cellular automata has been studied extensively for more than forty years, and a rich variety of synchronization algorithms have been proposed for not only one-dimensional arrays but two-dimensional arrays. In the present paper, we propose a new and simpler optimum-time synchronization algorithm that can(More)
The present paper proposes the control algorithm of direction of the end-point position error caused by the disturbance. Taking consideration of it, the effect of the disturbance on the end-point position is maximized in the direction of the singular vector corresponding to the maximum singular value. Therefore, if we can control the direction of the(More)
The present paper introduces an evaluation of the manipulation performance of a cooperating robotic manipulator with respect to task accuracy, taking into consideration the effects of the dynamic process between inputs and outputs in the manipulation system. A measure based on the output controllability of the manipulation system is proposed, which shows(More)
The firing squad synchronization problem on cellular automata has been studied extensively for more than forty years, and a rich variety of synchronization algorithms have been proposed for not only one-dimensional arrays but two-dimensional arrays. In the present paper, we propose a new optimum-time synchronization algorithm that can synchronize any(More)
  • 1