Abstract
In a non-gyro micro inertial measurement unit (NGMIMU), the coupling error reduces the system measurement precision obviously. Based on the definition of the coupling error, a new static decoupling method applied total least squares (TLS) algorithm is proposed. TLS considers not only the error of accelerometer output, but also the calibrating error of the input signal arising from the couple factor. Based on TLS, the solution of the coupling coefficient equation has the characteristic of minimum norm to the input and output values. In the navigation parameter estimation, according to the relationship of the accelerometer input and output value, the accurate estimated input value can be acquired through fitting the couple coefficient matrix using TLS and reconstructing the input value using Moore-Penrose generalized inverse matrix. A simulation case for estimating angle rate is investigated by this approach. The results show that the ratio of decoupling error is less than 8% and verify the feasibility of the static decoupling method.
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References
Schuler, A.R.: Measuring Rotational Motion with Linear Accelerometers. IEEE Trans. on AES 3(3), 465–472 (1967)
Merhav, S.J.: A Nongyroscopic Inertial Measurement Unit. J. Guidance 5(3), 227–235 (1982)
Tan, C.-W., Park, S.: Design of Gyroscope-free Navigation Systems. In: 2001 Proceedings of Intelligent Transportation Systems, pp. 286–291 (2001)
Lee, S.C., Huang, Y.C.: Innovative Estimation Method with Measurement Likelihood for All-accelerometer Type Inertial Navigation System. IEEE Trans. on AES 38(1), 339–346 (2002)
Kao, C.F., Chen, T.L.: Design and Analysis of an Orientation Estimation System Using Coplanar Gyro-free Inertial Measurement Unit and Magnetic Sensors. Sensor and Actuators A 144, 251–262 (2008)
Wang, J., Wang, Q., Sun, S.: Optimum technology for non-gyro micro inertial measuring unit. Jounal of Harbin Institute of Technology 34(5), 632–635 (2003)
Valaee, S., Champagne, B., Kabal, P.: Localization of Wideband Signals Using Least-Squaress and Total Least-Squaress Approaches. IEEE Trans. on Signal Processing 47(5), 1213–1222 (1999)
Kubus, D., Kroger, T., Wahl, F.M.: On-line estimation of inertial parameters using a recursive total least-squares approach. In: Proceedings of International Conference on Intelligent Robots and Systems, pp. 3845–3852 (2008)
Yang, K., An, J., Bu, X., Sun, G.: Constrained Total Least-Squares Location Algorithm Using Time-Difference-of-Arrival Measurements. IEEE Trans. on Vehicular Technology 59(3), 1558–1562 (2010)
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© 2012 IFIP International Federation for Information Processing
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Ding, M., Yang, D., Zhao, J., Zhuang, L. (2012). Research on Static Decoupling Method of Non-Gyro Micro Inertial Measurement Unit. In: Li, D., Chen, Y. (eds) Computer and Computing Technologies in Agriculture V. CCTA 2011. IFIP Advances in Information and Communication Technology, vol 368. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-27281-3_8
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DOI: https://doi.org/10.1007/978-3-642-27281-3_8
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