Observer-based quantized sliding mode H_∞ control of Markov jump systems

An adjustable quantized approach is adopted to treat the H_∞ sliding mode control of Markov jump systems with general transition probabilities. To solve this problem, an integral sliding mode surface is constructed by an observer with the quantized output measurement and a new bound is developed to bridge the relationship between system output and its quantization. Nonlinearities incurred by controller synthesis and general transition probabilities are handled by separation strategies. With the help of these measurements, linear matrix inequalities-based conditions are established to ensure the stochastic stability of the sliding motion and meet the required H_∞ performance level. An example of single-link robot arm system is simulated at last to demonstrate the validity.