Design of a nine-accelerometer non-gyro inertial measurement unit

Details Design of a nine-accelerometer non-gyro inertial measurement unit Design of a nine-accelerometer non-gyro inertial measurement unit

Feb 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005spie.5634..739d&link_type=abstract

Advanced Sensor Systems and Applications II. Edited by Rao, Yun-Jiang; Kwon, Osuk Y.; Peng, Gang-Ding. Proceedings of the SPIE,

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Scientific paper

Non-gyro inertial measurement unit (NGIMU) uses only accelerometers replacing gyroscopes to compute the motion of a moving body. Use the traditional accelerometer configurations for reference, a novel nine-accelerometer configuration of NGIMU is proposed with its mathematic model constructed. This configuration can acquire the expressions of the angular accelerations directly and avoid calculating the differential poly-equation. To confirm the effectiveness of the design, the experiment system is set up and the DSP data processing circuit is also done. In addition, the experiments of the angle estimating are performed and the results show that the design can reflect the trend of the angle changing with high precision to some extend.

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