Title :
Geometric interpretation of complex vectors arising in the frequency-domain analysis of multivariable systems
Author_Institution :
Hawker Siddeley Dynamics Ltd., Hatfield, Herts., England
fDate :
2/1/1975 12:00:00 AM
Abstract :
It is shown that an

-dimensional vector whose components are complex numbers can be visualized as a plane ellipse in geometric

-space. The length and direction of a complex vector are interpreted in terms of the ellipse axes thus giving a deeper insight into the eigenstructure of system transfer matrices. The system characteristic ellipse is introduced and its application to the measurement of characteristic loci is discussed.
Keywords :
Eigenvalues; Linear systems, time-invariant continuous-time; Transfer function matrices; Eigenvalues and eigenfunctions; Equations; Frequency domain analysis; Length measurement; MIMO; Negative feedback; Output feedback; Transforms; Turning; Visualization;
Journal_Title :
Automatic Control, IEEE Transactions on
DOI :
10.1109/TAC.1975.1100872