摘要:

Recent work on the application of complex variable theory to the analysis of linear multivariable systems has led to a design approach that integrates the multivariable frequency-response and root-locus techniques. A brief discussion of a two-stage design method that derives from this approach is first undertaken and its application to an automatic flight control system is then considered. The design starts with the introduction of an inner-loop compensator for which root-locus techniques are employed for the adjustment of closed-loop characteristic frequencies. This is then followed by an outer-loop gain injector design where frequency-response techniques are employed for the adjustment of open-loop characteristic gains. The overall scheme results in a controlled system whose response is fast, non-oscillatory, accurate in the steady state and largely non-overshooting and non-interactive.

ISSN:0020-7179    

DOI:10.1080/00207177908922702

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

摘要:

In a recent paper (Grimble 1978) it was demonstrated that the problem of spectral factorization of a para-hermitian matrixA(s)has a particularly simple form ifA(s)has a particular form of ‘ mirror symmetry ’. It was conjectured that the derived results could possibly be extended to other types of symmetry. This is indeed the case as is demonstrated by the following elementary result.

ISSN:0020-7179    

DOI:10.1080/00207177908922703

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor