This paper mostly introduce three issues of Vehicle Navigation System, that are navigation geographic database standard, data structure and data model, superior road.

本文主要介绍了汽车导航系统中的导航地理数据库标准、数据结构与数据模型、最优路径三个问题。

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Futhermore, this paper discussed designing of system structure, the processing of basic data, spatial analysis and geographic modeling.

重点对系统结构设计、基础数据处理、空间分析、地理建模等方面都做了详尽的讨论。

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This paper compared the navigable data with general geographic information data in data model, accuracy and structure, etc.

本文对导航数据与一般的地理信息数据在数据模型、数据的准确性、数据的组织方法等方面进行了比较。

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The report provides analysis by industry and geographic region as well as data on premium pay, stock ownership guidelines, perquisites and benefits, and board composition and structure.

FORBES: Pay Hikes for Directors Should Trigger Clear, Confident Communications