hal-01351792
https://inria.hal.science/hal-01351792
https://inria.hal.science/hal-01351792/document
https://inria.hal.science/hal-01351792/file/978-3-642-27281-3_8_Chapter.pdf
doi:10.1007/978-3-642-27281-3_8
[IFIP] IFIP - International Federation for Information Processing
[IFIP-AICT] IFIP Advances in Information and Communication Technology
[IFIP-TC] IFIP Technical Committees
[IFIP-TC5] IFIP TC5: Information Technology Applications
[IFIP-WG5-14] IFIP WG5.14 : Advanced Information Processing for Agriculture
[IFIP-CCTA] CCTA: Computer and Computing Technologies in Agriculture
[IFIP-AICT-368] Computer and Computing Technologies in Agriculture V - Part I
Research on Static Decoupling Method of Non-Gyro Micro Inertial Measurement Unit
Ding, Mingli
Yang, Dongmei
Zhao, Jindong
Zhuang, Lili
[INFO] Computer Science [cs]
COMM
Non-gyro micro measurement unit (NGMIMU)
decoupling
total least squares (TLS)
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.
2011-10-29
2015-01-01
en
http://creativecommons.org/licenses/by/
IFIP Advances in Information and Communication Technology
Springer
5th Computer and Computing Technologies in Agriculture (CCTA)
Beijing, China