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A discontinuous control law is proposed to achieve global asymptotic stabilization for oscillators with bounded delayed input. Only the “position” signal is used to generate the piecewise constant control signal. The asymptotic stability is analyzed by Poincaré Map method and conditions are proposed. The effectiveness of this control law is verified by simulation studies.
Being affected by materials processing and working environment, Hemispherical resonator gyro(HRG) output signal inevitable changes with environment temperature. In this paper, reasons for temperature drift of HRG are analyzed and the temperature model, based on a series of temperature tests, is identified by finite memory recursive least square algorithm. After comparing with original HRG output,...
Oscillators with bounded delayed input are stabilized by a sliding mode control law. In the control law, sign function is replaced by high gain function to avoid chattering in the presence of time delay. A condition is developed to determine the gain. Simulation is conducted to show the effectiveness of the theoretical analysis.
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