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最近几年,随着电子技术的飞速发展,战术飞机的机载雷达也有了惊人的进展。仅在15到20年前,模拟脉冲多卜勒雷达还是由12部以上的独立设备构成,其重量超过800磅,平均无故障时间也只有10小时左右。而今天的雷达仅由4部或5部独立的设备组成,重量大约为300磅,平均无故障时间在100小时以上,而且性能显著提高,远远超过了早期的雷达。所有这些技术上的进步,都大大提高了我们武装部队的实力。但是另一方面,每个雷达设计人员必须考虑续继改进的问题。随着雷达
In recent years, with the rapid development of electronic technology, tactical aircraft airborne radar has made amazing progress. Just 15 to 20 years ago, the analog pulsed Doppler radar was also comprised of more than 12 separate devices weighing more than 800 pounds and having an MTBF of only about 10 hours. And today’s radar consists of only four or five separate devices, weighs about 300 pounds, has an MTBF above 100 hours, and significantly improves performance, far outpacing earlier radars. All of these technological advances have greatly enhanced the strength of our armed forces. But on the other hand, every radar designer must consider the issue of continuing to improve. With the radar