遥感水深反演海图修测应用研究

卫星遥感技术可以应用于浅海水下目标探测，是特殊区域碍航物探测的有效手段。结合海岛礁的特殊地理环境和测绘需求，采用高分辨率卫星影像进行浅水深反演试验，提出的高分辨率预处理方法实用、有效；并与海图数据结合，进行水深标定和海图修测应用分析。研究结果表明，针对南海岛礁，应用高分辨率卫星影像可以获取岛礁分布和轮廓、概略等深线信息、潜在航道以及水下障碍物信息等，能达到修测海图的目的。

Research on the Use of Retrieving Sounding by Satellite Remote Sensing in Chart Surveying

The technology of satellite remote sensing can be used to detect the seabed object, which is the best method for detecting the obstacles in certain environment. This paper proposes an utility and effective preprocessing method on high-resolution images, by testing the retrieving sounding using high-resolution satellite images, in order to adapt to island and reef in special environment and content to surveying. And then, this paper uses this method to calculates the depth and analyze the use of chart surveying with the data of chart. The results show that we can get more useful information from high-resolution satellite images, such as position and contour of island and reef, outlining isobaths, hidden sea-route and the seabed obstacles, which is suitable for chart surveying of South China Sea island and reef.