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For the spacecraft which has great flexibility and strong coupling has the large ground measurements error of flexible parameters and the high-precision in orbit control difficulties. Based on piezoelectric ceramic sensor and actuator we design the active vibration suppression program which obtains the dynamics model of spacecraft that has great flexibility through parameter identification of high-precision...
For the complex spacecraft with large flexible accessories, suppressing the flexible vibration is a significant problem. Based on singular perturbation theory, the combination control method is proposed, which associates nonlinear PID controller and linear quadratic controller by dividing spacecraft dynamics equations into slow-change subsystem and quick-change subsystem. The slow-change subsystem...
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