This study constructs a novel four-dimensional fractional-order chaotic system. It verifies chaotic nonlinear dynamic
behaviors and physical reliability by numerical simulation and hardware circuit design. For a class of parameter
uncertainty fractional different-lags ( τi ) chaotic systems, the authors design a time-delayed (δ) synchronization controllers
and parameter adaptive laws. It proves that the drive system and the response system tend to be synchronized and
identified parameter when the control parameter matrix K satisfies the condition that K – nE is a positive definite matrix.
Simulation results show physical reliability of the fractional-order different-lags chaotic system and verify effectiveness
of different-lags synchronization in time-delayed system method design.