其关键设备是景象匹配相关器，关键技术是景象匹配，它利用实时图像和基准图像的匹配来实现自主导航、制导。
Its key equipment is scene matching correlator, and its key technology is scene matching. It realizes independent navigation and guidance by matching real-time image and reference image.
地图匹配制导由于具有良好的自主性而成为飞行器导航的一种重要方式。
Map matching becomes an important means of aircraft navigation due to its high autonomousness.
为了实现安全着陆小天体，探测器必须具有自主导航、制导和控制的能力。
Probe must have the ability of autonomous GNC to perform landing safely.
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