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Parameter Estimation of 2-DOF Dynamic System using Particle Filter  

Kim, Tae-Yeong (Electronics and Information Department, Chonbuk National University)
Chong, Kil-To (Electronics and Information Department, Chonbuk National University)
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Abstract
Currently, the majority of systems which are non-linear are in need of the correct system equations for controlling and monitoring. Therefore, the correct estimation of parameters is crucial. Generally, parameters are changed due to system deterioration or sudden environmental alterations. Given the limitations of system monitoring unstable controls can arise. In the following paper, the parameter estimation method is proposed using software filters to combat these system instabilities. For dynamic instances, a powerful particle filter is used to control the nonlinear and noisy environments in which they take place. Using a setup simulation comprised of a slider and pendulum, the state variable of noise is obtained. After collecting the data, the proposed algorithm is used to estimate both the state variable and its parameters. Finally, these results are checked with correct parameter estimations to evaluate and verify the algorithms performance.
Keywords
Non-linear system; Dynamics; Particle filter; Parameter estimation;
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