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Accuracy improvement of SINS based on IMU rotational motion

机译：基于IMU旋转运动的SINS精度提高

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The SINS with IMU rotated is the high performances position measurement system based on the fiber optic gyroscopes. We have presented a theoretical and experimental study of the IMU rotation. Several experiments have proven that the combination of the SINS with IMU rotation achieves very high performance. SINS size and weight make it particularly suitable as the position measurement system of the small vehicles for which precise position with meter or sub-meter level is a critical issue. The experimental results showed that, the position errors which are calculated by SINS with IMU rotation, are much less than IMU static. Where, the position error which is caused by IMU double-axis rotation is 1.47 nm, which is much less than IMU single-axis rotation 6.06 nm. Therefore, the proposed position determination method is highly beneficial in providing accurate position of vehicle for several navigation applications, such as Missile boat and helicopter take off and landing platform on the aircraft carrier, etc.
机译：旋转了IMU的SINS是基于光纤陀螺仪的高性能位置测量系统。我们提出了IMU旋转的理论和实验研究。几项实验已经证明，将SINS与IMU旋转结合使用可获得很高的性能。 SINS的尺寸和重量使其特别适合用作小型车辆的位置测量系统，对于这些车辆而言，精确到米或亚米水平的位置至关重要。实验结果表明，SINS随IMU旋转计算出的位置误差比IMU静态误差小得多。其中，IMU双轴旋转引起的位置误差为1.47 nm，比IMU单轴旋转6.06 nm小得多。因此，所提出的位置确定方法在为多种导航应用提供准确的车辆位置方面非常有益，例如导弹船和直升机在航空母舰上的起降平台等。

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