[3] [3] CHEN P, LIU X, YAN Q. Adaptive friction compensation for a class of mechanical systems based on LuGre model[J]. Int. J. Robust. Nonlinear Control, 2022, 32: 4510-4534.

[4] [4] Canudas de Wit, H Olsson, K J Astrom, et al. A new model for control of systems with friction[J]. IEEE Trans. on Automatic Control, 1995, 40(3): 419-425.

[5] [5] YAO J, DENG W, JIAO Z. Adaptive control of hydraulic actuators with LuGre model-based friction compensation[J]. IEEE Trans. Ind. Electron, 2015, 62: 6469-6477.

[6] [6] Dupont P, Hayward V, Armstrong B, et al. Single state elastoplastic friction models[J]. IEEE Trans. on Automatic Control, 2002, 47(5): 787-792.

[8] [8] HAN J Q. From PID to active disturbance rejection control[J]. IEEE Transactions on Industrial Electronics, 2009, 56(3): 900-906.

[9] [9] WANG L, LIU X, WANG C. Disturbance frequency adaptive control for photo-electric stabilized platform based on improving extended state observation[J]. Optik, 2019, 187: 198-204.