Parameter Identification Using Orthogonal polynomials and its Application on a Pneumatic Position Servo

This paper considers the problem of system identification by employing simple input signals to avoid the commonly used pseudo-random binary sequences (PRBS) to prevent damage to certain systems such as hydraulic/pneumatic servo. The orthogonal polynomials are employed to identify system models. The adopted control algorithms are discussed in detail. The effectiveness of the control algorithm has been confirmed by applying on a pneumatic position servo system.