A New Calibration Method for Low Cost MEMS Inertial Sensor Module




Sheng-Chih Shen;Chia-Jung Chen;Hsin-Jung Huang

Key Words

MEMS ; inertial sensors ; navigation ; underwater


Journal of Marine Science and Technology

Volume or Term/Year and Month of Publication

18卷6期(2010 / 12 / 01)

Page #

819 - 824

Content Language


English Abstract

This paper presents a new calibration method to overcome the challenges of MEMS inertial sensors for underwater navigation. The MEMS inertial sensor module is composed of an accelerometer, a gyroscope and a circuit of signal process. For navigation estimation, it is easy to be influenced by errors which come from MEMS inertial sensors. In general, the sources of error can he categorized into Iwo groups, deterministic type and stochastic type. The former primarily includes bias errors, misalignment and nonlinearity: the latter contains temperature effect and signal drifting. Subsequently, the linearity calibration is used to modify the deterministic error and the wavelet analysis can suppress the stochastic noise. Therefore, the new calibration method integrated of linearity calibration and wave-let signal processing is utilized to enhance the accuracy and performance of MEMS inertial sensor module. The experimental results demonstrate that the output signal can be corrected suitability by means of the proposed method.

Topic Category 基礎與應用科學 > 海洋科學
工程學 > 市政與環境工程