This paper presents a new method to convert a characteristic equation from the z-domain to the w-domain, which is best suitable for the stability-equation method. Stability criteria applicable to sampled-data control systems with characteristic equations having both real and complex coefj?cients are
Stability analysis of randomly sampled digital control systems
โ Scribed by K.D Dannenberg; J.L Melsa
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- English
- Weight
- 523 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0005-1098
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โฆ Synopsis
Random sampling in digital control systems has characteristically been avoided by development of precise timing and computational cycles even though examples are known in which the randomness aids system stability. Generally, attempts to determine the effects of relaxing these rigid timing requirements have been hampered by the lack of a convenient analysis technique for this class of problems. In order to address these problems, a method for the analysis of expected system response is developed and applied to a typical spacecraft digital control system design.
๐ SIMILAR VOLUMES
The concept of a Stochastic Lyapunov Functional may be used to derive sufficient conditions for the sample stability of an important class of models for multi-loop control systems. Snmmgry--In a large class of multi-loop control systems, many feedback loops are "closed" through a time-shared digita
An analysis of control systems containing nonlinear elements and elements operating on discrete as well as continuous signals is described. When amplitude sensitive elements are involved in sampled-data systems, and provided certain restrictions are adhered to, it is shown that describing function t
7'his work is a generalization of Tsypkin's stability criterion for a class of time-varying nonlinear sampled-data feedback systems. Some sufficient conditions for the response to any bounded input sequence to be bounded are preserded. No assumptions are made concerning the internal dynamics of the