Title : 
Factorisation result for optimal discrete-time systems
         
        
        
            Author_Institution : 
University of New South Wales, School of Electrical Engineering, Kensington, Australia
         
        
        
        
        
        
        
            Abstract : 
A z transform factorisation result is developed from the discrete-time matrix Riccati equation, in a similar way to the well known spectral-factorisation result of continuous time systems.
         
        
            Keywords : 
Z transforms; optimal control; sampled data systems;
         
        
        
            Journal_Title : 
Electronics Letters
         
        
        
        
        
            DOI : 
10.1049/el:19700164