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This paper presents how to use feedback controller with helicopter state space model. We design the LQR controller to obtain controller gain matrix and used it for simulation. Our approach is simple and gives the basic understanding about how to develop controller for solving the stability of linear helicopter flight dynamics.
In this paper, we introduce a new design approach for self-sustained resonant acceleration, that uses an automatic gain control (AGC) to achieve a stabilized oscillation dynamics. Fundamental idea of this acceleration is to maintain uniform amplitude of oscillation. Through system modeling and loop transformation considering the envelope of oscillation, the controller is design to keep up uniform...
In this paper, a new design approach of force rebalance loop is investigated for the vibratory rate sensor application. The proposed rebalance loop design takes advantages of a modified AGC loop configuration to simplify the system dynamics of oscillating characteristics. The proposed modification of AGC and rebalance strategy, which maintains controlled oscillation in the loop, acquires several advantages...
In this paper, presented are summarized results of the design, analysis, and experiment of a self-sustained oscillation loop for a surface micromachined resonant accelerometer, ACRC-RXL. After introduction of the operating principle, the micromachined device is illustrated including the fabrication process. In designing the oscillation loop, a describing function technique based on the nonlinear system...
Despite precise relative positioning performance of a differential GPS based navigation system, it requires the reference station in close boundaries and is likely to be affected by satellite observation environments. In this background, this paper presents an INS and vision sensor integrated system, which uses a combination of feature points and the landmark whose position is preliminarily known...
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