The navigation accuracy of the inertial navigation system can be increased greatly by using these techniques, and so that the calibration and the reset period can be extended.
此项技术可以有效地提高惯性导航系统的导航精度，并可大幅度地延长校准和重调周期。
2
If that distance doesn't change within a given period of time, the navigation computer knows that your foot is stationary.
如果距离在一定的时间内没有改变，那么导航电脑就会知道你是静止的。
3
Based on the experimental result of construction river diversion model of Dayuandu, this paper studies the flow condition for navigation and drainage in first construction period.