Iterative identification of nonlinear dynamic systems with output backlash using three-block cascade models

作者：Voros Jozef^*

来源：Nonlinear Dynamics, 2015, 79(3): 2187-2195.

DOI：10.1007/s11071-014-1804-4

• Nonlinear systems
• Identification
• Cascade models
• Backlash

The paper deals with the parameter identification of nonlinear dynamic systems with both actuator and sensor nonlinearities using three-block cascade models with nonlinear static, linear dynamic and nonlinear dynamic blocks. Multiple application of a decomposition technique provides special expressions for the corresponding nonlinear model description that are linear in parameters. Aleast-squares-based iterative technique allows estimation of all the model parameters based on measured input/output data. Illustrative examples of nonlinear systems identification with two-segment polynomial input block and backlash output block characteristics are included.

• 出版日期2015-2