New DXHS algorithm for periodic vibration control — Numerical simulation and experimental result

The new type of active noise feedforward control (new DXHS algorithm) was proposed and its local stability was analysed to show that the new algorithm can overcome drawbacks of filtered-x least mean square (FxLMS) algorithm as well as delayed-x harmonics synthesiser (DXHS) algorithm. This paper verifies with simulations and experiments how well the new DXHS algorithm works. For the simulations and the experiments, the new DXHS algorithm is transfered from the continuous-time version to the discrete-time version. By observing global behaviors, it is made clear some issues on transient responses until the adjustable parameters converge to the stable equilibrium points.