摘要
雷达新一代战斗机雷达正在研制中,它们以F-22的有源电子扫描阵(AESA)雷达为代表。这种雷达由1000多个发射/接收(T/R)模块组成,每个模块能产生约10瓦的平均功率,总峰值功率可达兆瓦级。其波束能迅速改变方向或波形,故在以交替模式工作时,可迅速由一种模式转换成另一种模式,两种模式对航空电子系统来说似乎同时发生,好像有两个不同的雷达在工作。可靠性高是AESA雷达的重大优点,它不会突然发生故障,即使有几个T/R模块失效,性能也不会显著降低。据说这种雷达的无维修寿命可达20000小时,与飞机寿命相同。
The F-22 will have an active electronically scanned array (AESA ) radar developed by Westinghouse and Texas Instruments . The APG-73 radar developed by Hughes for the F-18 C/D and improved E/F has the growth capability to accept an active phased-array antenna. Acceptance of fly-by-wire systems is now almost total and industry is beginning to look seriously at the next steps, fly-by-light and power-by-wire. Combat aircraft cockpits are in the transition between cathode-ray-tube and liquid-crystal-display technology.
出处
《国际航空》
北大核心
1994年第6期39-41,共3页
International Aviation
