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This paper is concerned with positivity analysis for discrete-time descriptor systems with time delays. At first, an explicit solution of such systems is given by using z-transform and inverse z-transform. Then, a set of necessary and sufficient conditions for positivity of discrete-time descriptor systems with time delays is presented under some conditions. In addition, based on the obtained conditions...
In urban water supply system, the water quality detecting indices such as pH value are monitored continuously. When the indices exceed the limiting value, the system will effectively handle the treatment against accident to ensure the safety of water. Because the water in pipelines has random fluctuation, it is difficult to find the problem in time only by the means of limiting value. This paper presents...
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