Simulation Modeling of Coarse Tracking System in Composite Axle System Based on Measured Operating Data

摘要

The coarse turntable has been determined. An important prerequisite for designing the composite axis control system and selecting the device for the precision tracking system is to establish an accurate coarse tracking model. Only have a set of measured operating data with non-differentiable nonlinear links and unknown interference. The system identification is difficult to identify the nonlinear part and interference affect the identification accuracy. We propose a method based on the measured operating data, using the method of combining analysis and simulation modeling. The model structure of the system is determined by analyzing, the specific parameters, nonlinear and interference of the model are determined by simulation modeling. The obtained model is matched well with the measured data, and a more accurate nonlinear model is obtained.