Author(s)

Xingyuan Xu, Yuanli Cai

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The attitude control problem of the kinetic kill vehicle is studied in this work. A new mathematical model of the kinetic kill vehicle is proposed, the linear quadratic regulator technique is used to design the optimal attitude controller, and the pulse-width pulse-frequency modulator is used to shape the continuous control command to pulse or on-off signals to meet the requirements of the reaction thrusters. The methods to select the appropriate parameters of pulse-width pulse-frequency are presented in detail. Numerical simulations show that the performance of the LQR/PWPF approach can achieve good control performance such as pseudo-linear operation, high accuracy, and fast enough tracking speed.

Attitude Control, Kinetic Kill Vehicle, Linear Quadratic, Pulse-Width Pulse-Frequency

X. Xu and Y. Cai, "Pulse-Width Pulse-Frequency Based Optimal Controller Design for Kinetic Kill Vehicle Attitude Tracking Control," Applied Mathematics, Vol. 2 No. 5, 2011, pp. 565-574. doi: 10.4236/am.2011.25075.