海拉瓦系统可以对最新的航空摄影、卫星图片进行全数字化信息处理，形成完整的电子地图沙盘。

Through the processing of the aerophotography and the satellitic picture, the Helawa system can output the electronic map.

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采用迭代法利用电子地图网格数据，在接收的卫星云图上迭代套上地形及海岸线。

Using iterating method to draw coastal lines and topography lines on the 1A image according to the electronic map data.

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采用迭代法利用电子地图网格数据，在接收的卫星云图上迭代套上地形及海岸线。

Using iterating method to draw coastal lines and topography lines on the 1A image according to the electronic map data.

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