Spline adaptive filters based on real-time over-sampling strategy for nonlinear system identification
| العنوان: | Spline adaptive filters based on real-time over-sampling strategy for nonlinear system identification |
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| المؤلفون: | Ruobin Sun, Jinxin Liu, Ruqiang Yan, Liangdong Yang, Xuefeng Chen |
| المصدر: | Nonlinear Dynamics. 103:657-675 |
| بيانات النشر: | Springer Science and Business Media LLC, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Nonlinear system identification, Computer science, Applied Mathematics, Mechanical Engineering, Aerospace Engineering, Initialization, Ocean Engineering, Interval (mathematics), 01 natural sciences, Adaptive filter, Nonlinear system, Spline (mathematics), Control and Systems Engineering, 0103 physical sciences, Convergence (routing), Electrical and Electronic Engineering, Spline interpolation, 010301 acoustics, Algorithm |
| الوصف: | In this paper, a new spline adaptive filter (SAF) used for identifying the nonlinear systems is presented, in which a real-time over-sampling (RTOS) strategy is proposed in order to solve the performance degradation caused by the imbalanced distribution of the input data in SAF during the adaptive process. Based on the invariance property of nonlinear system, an initialization for the linear part in SAF is implemented in advance. The number of data falling into each spline interpolation interval is counted, and the historical input and output data of each interval are recorded in real-time. In each adaption loop, a new sample is generated through the existing recorded data in a certain interval according to the data distribution in all intervals, so that the distribution of input data could be relatively evened. Several numerical experiments were implemented, and the results show that the proposed RTOS strategy can significantly improve the convergence performance compared with the existing algorithms. |
| تدمد: | 1573-269X 0924-090X |
| DOI: | 10.1007/s11071-020-05899-7 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::71e860827b60a58c6370ae6f554eaeee https://doi.org/10.1007/s11071-020-05899-7 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........71e860827b60a58c6370ae6f554eaeee |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 1573269X 0924090X |
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| DOI: | 10.1007/s11071-020-05899-7 |