The Orders of Infinite Poles and Infinite Zeros of Structured Descripter Systems
Nobuhide SUDA, Baiping WAN · Transactions of the Society of Instrument and Control Engineers · 1990
This paper extends the graph approach for evaluating the orders of the infinite zeros of structured state space systems to structured descriptor systems.For the latter, not only infinite zeros but also infinite poles may exist.By introducing integration and differentiation nodes and defining a new index of pass in the system signal flow graph, it is found that the infinite poles and zeros are easily obtained from the graph, and that the nesting property is also applicable.