key term - Output vector

Definition

The output vector is a mathematical representation that encapsulates the outputs of a linear system at a given time. It connects the state variables of the system to the outputs, providing a concise way to express how inputs and internal states influence the observable behavior of the system. This concept is essential for analyzing how different inputs lead to various outputs in state-space representation.

5 Must Know Facts For Your Next Test

1. The output vector is typically represented as 'y(t)' and reflects the system's outputs at time 't'.
2. In state-space representation, the output vector is often defined by a linear transformation of the state vector and input vector.
3. The relationship between input, state, and output vectors can be described using matrix equations that define system dynamics.
4. The output vector can be influenced by both current states and past states of the system, depending on its formulation.
5. Understanding the output vector is crucial for control system design, where feedback mechanisms often rely on monitoring these outputs.

Review Questions

• How does the output vector relate to the state vector and input vector in a linear system?
  • The output vector is derived from both the state vector and input vector in a linear system. It represents how the current and past states, along with external inputs, affect the observable outputs of the system. Mathematically, this relationship is expressed through equations that combine these vectors, showing how changes in inputs or states will influence the outputs.
• Discuss how the definition of the output vector impacts control systems in engineering.
  • The definition of the output vector plays a significant role in control systems as it provides critical information on how the system behaves in response to various inputs. Engineers use this information to design controllers that manipulate inputs based on desired output behaviors. By monitoring the output vector, they can assess system performance and stability, adjusting parameters to achieve optimal operation.
• Evaluate how changes in the input vector can affect the output vector within a state-space model and discuss potential implications.
  • Changes in the input vector directly impact the output vector within a state-space model by altering how state variables respond over time. This interaction can lead to variations in system performance, such as increased stability or oscillations. By evaluating these effects, engineers can predict potential issues and adjust designs proactively, ensuring that systems operate efficiently under different conditions.

Related terms

state vector:

A collection of all the state variables that describe the internal condition of a system at any given time.

input vector:

A representation of all external inputs applied to the system, which influences its state and output.

state-space model:

A mathematical framework that describes a system using state variables, input vectors, and output vectors to analyze dynamic behavior.