Internal-external control and attitude toward disability.

Internal-external control and attitude toward disability.

Robust Attitude Control of Spacecraft Simulator with External Disturbances

The spacecraft simulator robust control through H∞-based linear matrix inequality (LMI) and robust adaptive method is  implemented. The spacecraft attitude control subsystem simulator consists of  a  platform, an air-bearing and a set of four reaction wheels. This set up provides a free real-time three degree of freedom rotation. Spacecraft simulators are applied in upgrading and checking the c...

Is external control important for internal control?

In general, systems try to have internal control; most humans want to feel like they have control over their life. Some do this by aiming for external control: they want to fix how the environment behaves. Others do this by trying to find synergies with the environment. How can we formalize these different strategies for control, and which one functions the best? I will try to answer these ques...

External and internal control in plant development

Bodies of plants are modularly organized. Development proceeds by adding new modules to open endings with a potential for branching. Each module is autonomous to some extent. Development relies on the self-organized patterns that emerge from the interactions of individual modules. Interactions include both competition and cooperation, and several types of positive and negative feedback loops ar...

Nonlinear Predictive Attitude Control of Spacecraft under External Disturbance

Predictive control technique is applied to the three-axis attitude control of spacecraft. The principal idea of predictive control is to construct a priori reference trajectory and build control command so that the actual system follows the reference trajectory. In the case of this study, the controlled variables are the quaternion attitude parameters and angular rates of spacecraft body axes. ...