This paper studies the joint state and parameter estimation problem for a linear state space
system with time-delay. A multi-innovation gradient algorithm is developed based on the …

In this paper, a numerical method for solving time‐varying delay equations and optimal
control problems with time‐varying delay systems is discussed. This method is based upon …

In this paper, an efficient finite difference method is presented for the solution of time‐delay
optimal control problems with time‐varying delay in the state. By using the Pontryagin's …

An approximate closed‐form optimal control design is proposed for the flight control of
quadrotor unmanned aerial vehicles. The nonlinear dynamic equation is rewritten as a …

The aim of this study is to develop an efficient iterative approach for solving a class of time-
delay optimal control problems with time-varying delay and external persistent disturbances …

In this paper, a new numerical scheme is proposed for multidelay fractional order optimal
control problems where its derivative is considered in the Grunwald–Letnikov sense. We …

This paper considers an optimal sliding mode control based on the cost control guaranteed
approach using the linear quadratic regulator method to stabilize delay fractional under …

This work presents an approximate solution method for the infinite-horizon nonlinear time-
delay optimal control problem. A variational iteration method (VIM) is applied to design …

Using the Pontryagin's maximum principle for a time-delayed optimal control problem results
in a system of coupled two-point boundary-value problems (BVPs) involving both time …

This paper presents an iterative approach for solving the optimal control problem (OCP) with
time-delayed terms and bounded control variables. The projection function is used to …