Quantification of the white noise component in accelerometer and gyrometer output signals using the Allan variance method

摘要

The so–called «Allan variance method» is a well–known tool extensively used in the discrimination and characterization of nois eudcomponents in precision oscillators . Theoretical properties are discussed in this paper and it is shown how they can be utilized toudadapt the tool to the analysis of inertial sensors signals . Furthermore, a figure of merit expressed in terms of mean and variance i sudpresented to quantify the performance of the method, and, an empirical formula for the probability density function is proposed .udAn example of application is then given where the method is applied to real accelerometer and gyrometer outputs to evaluat eudtheir white noise component .