Method of Improving the Navigation Accuracy of SINS by Continuous Rotation

A method of improving the navigation accuracy of strapdown inertial navigation system (SINS) is studied. The particular technique discussed involves the continuous rotation of gyros and accelerometers cluster about the vertical axis of the vehicle. Then the errors of these sensors will have periodic variation corresponding to components along the body frame. Under this condition, the modulated sensor errors produce reduced system errors. Theoretical analysis based on a new coordinate system defined as sensing frame and test results are presented, and they indicate the method attenuates the navigation errors brought by the gyros' random constant drift and the accelerometer's bias and their white noise compared to the conventional method.

作 者： YANG Yong MIAO Ling-juan SHEN Jun   作者單位： School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China  刊 名： 北京理工大學(xué)學(xué)報（英文版）  EI 英文刊名： JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY  年，卷(期)： 2005 14(1)  分類號： V249.322  關(guān)鍵詞： strapdown inertial navigation system (SINS)   rotation   navigation error  

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