Bekele, Berhanu(PhD)Abate, Wossenu2018-07-192023-11-042018-07-192023-11-042017-06http://etd.aau.edu.et/handle/123456789/9396The transfer function of a linear time-invariant system describes the input output behavior of the system when all initial conditions are zero. Hence, it should be independent of the state variables used in a state space description of the system. A state space description of an input-output system can be regarded as a time-domain description. For linear time-invariant systems, transfer functions provide another way of describing inputoutput systems; this description is sometimes called a frequency domain description. To discuss transfer functions of continuous-time systems, we need the Laplace transformenTransfer MatricesThesis