...隧道、高层楼群、高架桥下以及密林等地段时，由于遮挡会使GPS定位失效，引入更大的误差，这时就要采取推算定位（Dead Reckoning）进行自律导航。
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提出了一种基于直线和单特征点的视觉推算定位方法。
A new visual dead reckoning positioning method is presented for mobile robot, which is based on lines and single feature points.
提出了基于多真实度等级的分布式虚拟战场环境推算定位技术。
It is well known that dead-reckon is a key technology for Distributed Virtual Environments' scalability.
基于IC CP算法的重力匹配定位可以用于限制推算定位随航行时间增长的位置误差。
The gravity localization based on the ICCP algorithm and its generalization can be used to bind the position errors inherent in dead-rocking navigation, which increase with time.
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