Inertial microsystem output error modeling method
An error modeling and micro-system technology, applied in design optimization/simulation, calculation, sustainable transportation, etc., can solve problems such as system errors, achieve the effect of improving accuracy, enriching methods and means, and strengthening engineering practical value
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[0074] (1) The output error of the MEMS gyroscope takes the sampling data 6 minutes after the stable output, a total of 194 times, and each time has 72,000 data. The output error is obtained by calculating the mean value of the output minus the input value, and the output stability is obtained by calculating the standard deviation of the output. The correlation analysis between the static output error and the output stability of the inertial microsystem MEMS gyroscope was carried out, and the calculated correlation coefficient was 0.865;
[0075] (2) Take the threshold value as 0.7 and the correlation coefficient as 0.865, which is greater than the threshold value, and model the output error and output stability;
[0076] (3) Establish a polynomial initial model of the output error of the inertial instrument with respect to the output stability. Initial model selection first-order polynomial K 1 is the coefficient of the first-order term of the model, K 0 is the model con...
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