A Level Measurement Method based on Acoustic Resonance using Unscented Kalman Filter
نویسنده
چکیده
An accurate and low-cost level measurement method based on acoustic resonance is presented. The method is useful in the cases that measurements are noisy which might be due to environment noise or due to low-cost instruments used in the measurement process. An iterative nonlinear filtering algorithm, called the “Unscented Kalman filter” (UKF) has been employed to obtain a good estimate of the noisy measurements. Simulation and experimental tests have been carried out indicating that the UKF greatly improves the accuracy of the measured level.
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