The VG320 is widely accepted in dynamic control and land navigation systems with over 1500 systems currently in service.

VG320在动态控制和土地的导航系统被广泛接受，现在使用的系统超过1500套。

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In a word, it is a robust, reliable and real-time approach that can meet the requirement of vision navigation of miniature mobile land robot.

总之，该算法具备较好的鲁棒性，可靠性以及实时性，可以满足小型自主移动地面机器人的视觉导航需要。

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An online identification algorithm of odometer's scale factor in land used strapdown inertial navigation system is put forward.

提出陆用捷联惯导系统中里程计刻度因子的在线辨识算法。

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Though direct revenues alone would not make Galileo profitable, adding in the indirect economic gains resulting from better navigation of land, sea and air vehicles would produce a benefit-to-cost ratio of as much as 4.6 to 1.

ECONOMIST: Space race | The

The report also lauds the land-based eLoran radio navigation system as a very worthy back-up technology.

BBC: UK 'over-reliant' on GPS signals, engineers warn