期刊
2021 21ST INTERNATIONAL CONFERENCE ON CONTROL, AUTOMATION AND SYSTEMS (ICCAS 2021)
卷 -, 期 -, 页码 795-799出版社
IEEE
关键词
High-gain observers; Splines; Signal reconstruction
资金
- Consejo Nacional de Ciencia y Tecnologia (CONACYT) through scholarship SNI (Sistema Nacional de Investigadores)
- Instituto Politecnico Nacional [20200146, 20210603]
- Instituto Politecnico Nacional through scholarship EDI (Estimulo al Desempeno de los Investigadores)
- Instituto Politecnico Nacional through scholarship COFAA (Comision de Operacion y Fomento de Actividades Academicas)
- Instituto Politecnico Nacional through scholarship BEIFI (Beca de Estimulo Institucional de Formacion de Investigadores)
This work proposes a method to patch continuous-time signals using high-gain observers and third-order splines to address the issue of signal loss or distortion in real-time applications. By taking into account the starting and ending points as well as their derivatives, a smooth signal is obtained. Numerical experiments successfully reconstruct a sufficiently complex signal, demonstrating the validity of the approach.
In real-time applications, due to disturbances or problems inherent to the measurement systems, portions of the measured signal are lost or distorted. Thus, in those cases when the control goal is to track measured signals in real-time, the continuity and smoothness of the closed-loop system may be compromised. To minimize this problem, in this work, a method to patch the continuous-time signal is proposed. The approach, based on high-gain observers and third-order splines, allows taking into account not only the initial and the ending points of the missing part of the signal but the corresponding derivatives as well. As a result, a smooth signal is obtained. To illustrate the validity of the approach, a sufficiently complex signal, named the first state of the Lorenz attractor is reconstructed in the numerical experiments.
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