针对性对地磁辅助导航定位中基准图制备的需要，采用了建立区域地磁场模型的方法。

The method of regional geomagnetic field modeling is adopted in order to prepare for the reference map of geomagnetism-aided navigation and positioning.

youdao

图像匹配是图像导航中的关键技术，图像匹配系统在实时图和基准图之间寻找匹配位置，得到位置信息提供给航行器。

Image match is critical technique in image aided navigation. Image match system finds correspondence between real image and base image and then outputs the position parameters to the aircraft.

youdao

图像匹配是图像导航中的关键技术，图像匹配系统在实时图和基准图之间寻找匹配位置，得到位置信息提供给航行器。

Image match is critical technique in image aided navigation. Image match system finds correspondence between real image and base image and then outputs the position parameters to the aircraft.

youdao