On the singular cases of the complex routh algorithm for stability tests

Shyan S. Chen, Jason S.H. Tsai

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The Original Routh table dealing with real polynomials is further investigated for complex polynominals. Based on the tabular form proposed by Parks for the complex polynomial with respect to the imaginary axis, modified procedures for directly treating singularities in the array are proposed. Also, new procedures are developed for determining the respective orders of simple and/or repeated roots lying on the imaginary axis. As a result, the situation of conditional stability or instability can be distinguished by the criteria proposed in this paper.

Original languageEnglish
Pages (from-to)71-82
Number of pages12
JournalIMA Journal of Mathematical Control and Information
Volume10
Issue number1
DOIs
Publication statusPublished - 1993 Dec 1

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Control and Optimization
  • Applied Mathematics

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