Abstract
In this paper, a general five-step discrete-time zeroing neural dynamics (DTZND) model is proposed to solve linear time-varying matrix equation with unknown transpose. Specifically, the explicit continuous-time zeroing neural dynamics (CTZND) model is derived from the time-varying matrix equation with unknown transpose via Kronecker product and vectorization technique. Furthermore, a general five-step discretization formula is designed to approximate the first-order derivative of the target point, and the convergence condition is given. Thus, the general five-step DTZND model is obtained by using the general five-step discretization formula to discretize the CTZND model. Theoretical analyses present the stability and convergence of the proposed general five-step DTZND model. Numerical experiment results substantiate that the proposed DTZND model for solving linear time-varying matrix equation is stable and convergent with the theoretically analyzed errors. In addition, the improved DTZND models are provided in terms of accuracy and computational complexity, and verified by numerical experiments.
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