speed identifier using adaptive filter

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kokyet

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It has been known that the speed of an induction motor can be determined from its rotor slot harmonic (RSH) component, leading to the development of several analog RSH-based sensorless speed estimation techniques. A common problem encountered by these methods is that the speed information extraction process is complicated by the small level of the RSH signal relative to the fundamental signal and the presence of other harmonics. Furthermore, the frequency of the RSH changes as the load changes.
have anyone know the coding how to implement the recursive maximum likelihood algorithm inside the matlab filter???????urgent!!!!!!!!!!!
 

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