雷达波能穿透战机机头雷达罩么?如果不能,雷达怎么工作捏?如果能,为什么不把这种材料应用到机身上捏?
推荐回答(4个)
1.当然能,一般头锥的材料是玻璃钢或工程塑料
2.实际上,为了保证雷达的性能,一般是在选择材料上是某一波段的雷达波能透过,这个波段刚好和自己飞机上的雷达波段匹配
3.不可能预知敌人的雷达是什么波段的,全波段穿透的材料目前还没有
4,就算透过,也有折射,和筷子插入水中的效果类似,战斗机自己的雷达有软件修正,但是敌人的雷达可以发觉这一点,偏转导致的散射会被探测,还不如仔细设计外形
http://www.f22fighter.com/AffordableStealth.pdf
A common misunderstanding is that composite skins are used to make aircraft stealthy. In reality, many composites are partially transparent to radar, and expose the internal structure, wiring and components to the radar, which is the last thing a low observable designer wants.
你基本就是这种常见的误会......对雷达波透明的材料放在表面基本是最致命的,因为这等于直接暴露了内部结构。除非飞机内部结构的材料一样是对雷达透明的(比如空心......),但这根本不可能。
之所以雷达罩是隐身工程的难点,就是怎么能让自己的雷达波出去,不让对方的进来。把雷达罩做成隐身比把雷达本身做成隐身要容易得多。
而至于鸭翼:http://www.defence.pk/forums/1337224-post30.html
这等于是让主翼的任何塑形都大打折扣,因为传播到主翼上的雷达波的随机性已经大大增加了,也就是说不管怎么做总是会有可观的一部分返回到雷达,而不能够用主翼的形状规则的把照射的雷达波反射到无害的方向上。如果说只要Rafale,EF2000等级的隐身那还可以接受,但是这样的设计是很难达到真正的低可探测。
雷达工作不需要穿透,只需反射雷达波。雷达工作分主动式和被动式雷达。主动式是发射电波,电波达到侦查物体表面返回 ,雷达根据接受结果来进行判断。被动式则靠吸收被侦查对象发出的各种波来判断。两种各有千秋,前者主动权在自己手里,但容易招致反雷达导弹攻击,后者主动性查,但隐蔽性能好,不容易招到攻击。
当然可以,不过只是特定的波段。这和承担受力任务的其他机身部件没有可比性。
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