SINS can hardly meet the requirements of longtime. To solve the problem of SINS, the integrated navigation system design method is studied in this paper.

针对单一捷联式惯性导航系统无法进行长时间精确导航的难题，讨论了组合导航系统的实现方法。

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Navigation system design is mainly aiming at minimizing people intervention when robot moving purposely, fulfilling special tasks, and executing special operation.

导航系统设计的主要目标是在尽量少有人干预下，使机器人有目的地移动，完成特定任务，进行特定操作。

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The tracking algorithm proposed in this paper has good usability, it will have good value to mobile robot vision technology, especially the related navigation system design.

本文提出的算法具有一定的实用性，对今后的移动机器人视觉技术，尤其是相关的导航系统设计与研究有一定的参考价值。

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Amazon spokeswoman Patty Smith said the price differences on certain DVDs are the result of tests that the company performs to re-evaluate various aspects of its Web site, such as the navigation system, what the home page looks like, overall site design and product pricing.

CNN: Testing reveals varied DVD prices on Amazon