Parameter estimation for time varying nonlinear circuit from state analysis and simulation |
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Institution: | 1. Research scholar with the Department of Electrical Engineering, NIT Hamirpur, India;2. Faculty with the Department of Electrical Engineering, NIT Hamirpur, India |
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Abstract: | This paper develops a parameter estimation technique for a nonlinear circuit. The nonlinear circuit is represented by a state space model and perturbation theory is applied to obtain the approximate analytical solution for the state vector. The state model is assumed to be slowly time varying so that the parameter vector is constant over different time slots. The expressions obtained for the state vector are matched with the noisy data using the gradient algorithm and hence the parameter vector is estimated. Simulations are based on discretization of the state space model using MATLAB. |
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