CONTROL SYSTEMS - STATE VARIABLE ANALYSIS

12345678910111213
Across
  1. 3. The contour must bypass them with a small semicircle, when sketching a Nyquist diagram, with open-loop poles on the __ axis.
  2. 5. The _______ 's rule for reducing a signal-flow graph to a single transfer function requires the application of one formula.
  3. 6. The system is completely ____ if the determinant of the observability matrix is non-zero.
  4. 7. If an input to a system can be found that takes every state variable from a desired initial state to a desired final state, the system is said to be controllable; otherwise, the system is ____
  5. 8. The root locus is symmetrical about the _____ axis
  6. 10. __________ criterion lets us find how many poles are in each of the sections of the s-plane without giving us the coordinates of the poles.
  7. 11. An eighth-order system would be represented in state space with how many state equations?
  8. 12. The number of branches of the root locus equals the number of closed-loop _____
  9. 13. If the state equations are a system of first-order differential equations whose solution yields the state variables, then the output equation performs what combination function?
Down
  1. 1. Nodes (signals), branches (systems) are components of ___
  2. 2. det(sI-A)=0 is the ___ equation for the system from which the system poles can be found.
  3. 4. One way to plot the frequency response.
  4. 9. If an electrical network has three energy-storage elements, it is possible to have a _____ representation with more than three state variables.