论文部分内容阅读
引言空中系统对地面通讯设备的重要要求是,地面设备必须在一段特定的时间内满足严格的可靠性要求之下连续地工作。为了保证达到这些要求,采用了一种独特的“双阶段失效方式评价技术”。这一技术能够决定在特定的连续工作时期内可能发生的线路失效的方式。这一程序中的两个阶段为:第Ⅰ阶段,是理论的评价,通过它得到数学形式的分析,用来决定和评价线路失效和变坏的极限;第Ⅱ阶段是实验室测试,用来验证这些极限以及发现在第Ⅰ阶段中没有预示出的其他失效。本文将对这两个阶段加以描述。
Introduction An important requirement of airborne systems for terrestrial communications equipment is that the ground equipment must work continuously under stringent reliability requirements for a specified period of time. To ensure that these requirements are met, a unique “two-stage failure mode evaluation technique” has been adopted. This technique determines the way in which lines can fail during a particular continuous period of operation. The two phases of this procedure are: Phase I, which is a theoretical evaluation through which mathematical analyzes are made to determine and evaluate the limits of line failure and deterioration; Phase II is a laboratory test used to Verify these limits and find other failures that are not foreseen in stage I. This article will describe these two phases.