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Frequency measurement of sinusoidal signals corrupted by noise is dealt with. A new time-domain, digital signal processing method, based on an enhanced version of the zero-crossing technique, is in particular proposed. To obtain the desired frequency value, the method exploits the histogram of time intervals between consecutive zero-crossing events, and works with success in the presence of zero-mean...
The paper contains a proposal for the estimation of the frequency of a sine signal corrupted by zero-mean additive white gaussian noise. The method resorts to the histogram of the time intervals between adjacent zero-crossing samples. Validation has been carried out for various noise levels and results show that the relative error is much less than other algorithms for frequency estimation. Performances...
In the present work the authors present a procedure for the determination of the optimal calibration intervals of a measurement instrument according to the reference Standard. Generally speaking, the goal of a calibration process is to reduce out-of-tolerance occurrences to an acceptable level with respect to the desired quality target. The approach is based on the monitoring of the capability of...
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