Calibration and correction method of the output signals of the triaxial accelerometer
DOI:
https://doi.org/10.20535/1810-0546.2016.1.52999Keywords:
Navigation sensors, Accelerometers, Calibration, Output signals correction, Allan variationAbstract
Background. Calibration is one of the most important stages of work for putting into operation such navigation sensors as accelerometers.
Objective. The aim of this study is to investigate the possibility of using the calibration and correction method of the output signals of the triaxial accelerometer.
Methods. To work with the model outputs matrix methods of linear algebra are used. In particular, determining the unknown parameters of the model is based on the method of least squares. Correction algorithm is given in the form of a matrix notation for solving system of linear equations. Such methods of mathematical statistics as the standard deviation and the mathematical expectation were used for the output signals correction estimation.
Results. Formulas for calculations of calibration parameters were obtained, and correction link for output accelerometer signals was developed. Experimental calibration was organized and the data obtained by the algorithm of calibration and correction link was processed. The results of studies for several test samples of triaxial accelerometers are presented.
Conclusions. Using the calibration coefficients, which combine error scale factors and non-orthogonal axes errors can significantly reduce the computational load on the electronic signals processing unit and make output signals with a satisfactory accuracy.References
Metrology. Calibration of Measuring Instruments. Main Provisions, Organization, Procedure and Presentation of Results, Ukrainian Standard 3989–2000, 2000 (in Ukrainian).
V. Avrutov, “On scalar calibration of an inertial instrument cluster”, Innovations and Technologies New, vol. 2, no. 11, pp. 22–30, 2011.
V.V. Avrutov et al., “About scalar calibration for block of gyroscopes and accelerometers”, in Proc. 19th Saint Petersburg Int. Conf. Integrated Navigation Systems, St. Petersburg, Russia, 2012, pp. 113–118 (in Russian).
V. Avrutov and S. Golovach, “The scalar method of quality monitoring and diagnostics of the inertial measurement unit”, Visnyk NTUU “KPI”. Ser. Pryladobuduvannya, no. 48, pp. 14–20, 2014 (in Russian).
S.L. Lakoza and V.V. Meleshko, “Scalar Calibration of low and medium accuracy accelerometers”, Radiooptika, no. 1, pp. 9–28, 2015 (in Russian).
E.A. Izmaylov et al., “Scalar method of calibrating and balancing the strapdown inertial navigation systems”, in Proc. 15th Int. Conf. Integrated Navigation Systems, Saint Petersburg, 2008, pp. 145–154 (in Russian).
Yu.G. Egorov and H.N. Myint, “Synthesis of the programs for calibrating the accelerometers unit in the strapdown inertial navigation system”, Trudy FGUP “NPTsAP”. Sistemy i Pribory Upravleniya, no. 4, pp. 79–86, 2014 (in Russian).
E.A. Popov, “Calibration programs for accelerometer’s triad”, in Proc. 16th Conf. Navigation and Movement Control, St. Petersburg, Russia, 2014, no. 91. Available: http://www.elektropribor.spb.ru/kmu2014/progr.
Sheng-Chih Shen et al., “A new calibration method for low cost mems inertial sensor module”, J. Marine Sci. Technol., vol. 18, no. 6, pp. 819–824, 2010.
G. Panahandeh et al., “Calibration of the accelerometer triad of an inertial measurement unit, maximum likelihood estimation and cramer-rao bound”, in Proc. Int. Conf. Indoor Positioning and Indoor Navigation, Zurich, Switzerland, 2010, pp. 1–6.
V. Avrutov, “Scalar method of fault diagnosis of inertial measurement unit”, Advances in Aerospace Eng., vol. 2015, Article ID 264564, 10 p., 2015.
V. Avrutov, “Scalar diagnostics of the inertial measurement unit”, Int. J. Intelligent Systems and Applications, vol. 11, pp. 1–9, 2015. Avaliable: http://www.mecs-press.org/ijisa/ijisa-v7-n11/IJISA-V7-N11-1.pdf
M. Chernyak and V. Palyushok, “The method of calibration triaxial accelerometer navigation unit on the uniaxial rotary table”, Mexanika Giroskopichnyx System, vol. 26, pp. 5–15, 2013 (in Ukrainian).
D. Allan, “Statistics of atomic frequency standards”, Proc. IEEE, vol. 54, no. 2, pp. 221–230, 1966.
A.-H. Walid, “Accuracy enhancement of integrated MEMS-IMU/GPS systems for land vehicular navigation applications”, Ph.D. Thesis, Department of Geomatics Engineering, University of Calgary, Canada, UCGE Report no. 20207, 2005.2005.
S.V. Golovach, “Experimental study of the laser gyroscope characteristics”, Visnyk NTUU “KPI”. Ser. Pryladobuduvannya, vol. 47, pp. 33–38, 2014 (in Russian).
Downloads
Published
Issue
Section
License
Copyright (c) 2017 NTUU KPI Authors who publish with this journal agree to the following terms:- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under CC BY 4.0 that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work
