Decentralized-feedback pole placement of linear systems

  title={Decentralized-feedback pole placement of linear systems},
  author={Xiaoming Wang and Clyde F. Martin and David S. Gilliam and Christopher I. Byrnes},
A projective product spaces model is used to analyse decentralized systems. The degree of the pole placement map is computed. The conditions under which the degree is odd are also given. Twin lift systems are studied. It is proved that the poles of a twin lift system can be assigned to any values by local static and local dynamic feedback laws if and only if the system is jointly controllable. Communicated by Professor A. Isidori.