本文首先在对扫描部件失效分析和性能建模的基础上，获得描述扫描部件的关键性能指标。
First, based on the malfunction and the mathematical models of characteristics, the key performance indicator is confirmed.
在物体识别阶段，将景体与模型的匹配分成三部分进行，即扫描部件、图的匹配部件及匹配检验部件。
In object recognition stage, the approach divides the matching between scene and model into three parts, i. e. the Scanner, the Graph matcher and the Matching Verifier.
高可靠扫描部件是星载遥感仪器的关键部件，其可靠性验证试验的试验样本具有“小子样、零失效”的局限。
Highly reliable scanning components play an important role in satellite-borne remote sensing instrument. Their samples of reliability verification test are bound to be small sized and zero-failure.
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