The reliability and evaluation of Scanning Components for Satellite-borne Instrument is difficult in engineering because of extremely small sized and zero-failure.

星载遥感仪器扫描部件具有“极小子样、零失效”的特点，其可靠性分析与评估一直是工程实践中的技术难题之一。

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This paper analyzes the working mechanism of aerodynamic missile-borne radio altimetre and puts forward a new design for the radio altimetre based on virtual instrument and I/Q modulator.

从无线电高度表工作原理的分析与研究出发，提出了基于虚拟仪器技术和I/Q调制器的无线电高度表动态测试系统的总体设计，同时对测试数据的处理理论进行了一定的分析和研究。

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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.

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。

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