Scene matching is an important means on navigation and location of aeroplane, and radar image matching is thought a lot by reason of allweather.
景象匹配是飞行器导航与定位的一种重要手段，其中的雷达图像匹配由于具有全天候的特征而受到人们的重视。
2
It has various advantages that are unexampled other kind of navigation equipment: high precision, all-weather suitability, and total global coverage.
它所具有的高精度、全天候、全球覆盖能力等诸多优点是其它导航设备所无法比拟的。
3
The navigation satellite system, which provides high precision position, velocity and times allweather and all time, plays an important role in military and civil use. The NO.