In this paper we present some new sufficient conditions for robust stability of linear systems with uncertain time delay as well as structured parameter uncertainty. The stability robustness bounds obtained from the new sufficient conditions are independent of the size of time delay. Some illustrative examples are given.
Luo, J. S., Johnson, A., & Bosch, van den, P. P. J. (1995). Delay-independent robust stability of uncertain linear systems. Systems and Control Letters, 24, 33-39. https://doi.org/10.1016/0167-6911(93)E0156-B