摘要:Abstract In this paper, a new statistical approach to design optimal input sequences is proposed. The proposed algorithm is the combination of D-optimal input design method and the PI 2 algorithm. In the proposed method, a cost function of the PI 2 algorithm is modified to calculate control sequence, which maximizes FIC in a statistical way. The proposed method is compared with a previous optimal input design method in numerical simulations. The result of the numerical simulation shows the advantage of the proposed method under a noisy situation.