2017-07-27T21:26:06+03:00[Europe/Moscow] en true Bode plot, Negative feedback, Positive feedback, Damping, Decision theory, Feedback, Kalman filter, Resonance, Impulse response, Process control, Bellman equation, Microgrid, Ordinal optimization flashcards
Control theory

# Control theory

• Bode plot
In electrical engineering and control theory, a Bode plot /ˈboʊdi/ is a graph of the frequency response of a system.
• Negative feedback
Negative feedback occurs when some function of the output of a system, process, or mechanism is fed back in a manner that tends to reduce the fluctuations in the output, whether caused by changes in the input or by other disturbances.
• Positive feedback
Positive feedback is a process that occurs in a feedback loop in which the effects of a small disturbance on a system include an increase in the magnitude of the perturbation.
• Damping
Damping is an influence within or upon an oscillatory system that has the effect of reducing, restricting or preventing its oscillations.
• Decision theory
Decision theory (or the theory of choice) is the study of the reasoning underlying an agent's choices.
• Feedback
Feedback occurs when outputs of a system are routed back as inputs as part of a chain of cause-and-effect that forms a circuit or loop.
• Kalman filter
Kalman filtering, also known as linear quadratic estimation (LQE), is an algorithm that uses a series of measurements observed over time, containing statistical noise and other inaccuracies, and produces estimates of unknown variables that tend to be more precise than those based on a single measurement alone, by using Bayesian inference and estimating a joint probability distribution over the variables for each timeframe.
• Resonance
In physics, resonance is a phenomenon in which a vibrating system or external force drives another system to oscillate with greater amplitude at a specific preferential frequency.
• Impulse response
In signal processing, the impulse response, or impulse response function (IRF), of a dynamic system is its output when presented with a brief input signal, called an impulse.
• Process control
Process control is an engineering discipline that deals with architectures, mechanisms and algorithms for maintaining the output of a specific process within a desired range.
• Bellman equation
A Bellman equation, named after its discoverer, Richard Bellman, also known as a dynamic programming equation, is a necessary condition for optimality associated with the mathematical optimization method known as dynamic programming.
• Microgrid
Microgrid is a localized grouping of electricity sources and loads that normally operates connected to and synchronous with the traditional centralized electrical grid (macrogrid), but can disconnect and function autonomously as physical and/or economic conditions dictate.
• Ordinal optimization
In mathematical optimization, ordinal optimization is the maximization of functions taking values in a partially ordered set ("poset").