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标题: 求助:关于响尾蛇导弹的资料 [打印本页]

作者: 蓝军参谋    时间: 2009-11-10 22:14     标题: 求助:关于响尾蛇导弹的资料

本人在写一个专辑,介绍响尾蛇导弹的。所以希望大家能帮助提供关于响尾蛇导弹的相关资料:

书籍、刊物或者网络连接都可以;
中英文不限;
要求内容最好权威一些,准确一些;

另外关于响尾蛇导弹制导系统的工作原理,我翻译wiki上的资料,很辛苦,效果也不好。希望高手能指点一下。

我争取写好后能给大嘴论坛也发上来。
作者: 幻客    时间: 2009-11-11 07:38

响尾蛇型号很多,你想知道初期型号还是最新AIM-9XBlockII?
作者: 蓝军参谋    时间: 2009-11-11 13:18

http://bbs.top81.cn/viewthread.php?tid=107889&extra=page%3D1
作者: 蓝军参谋    时间: 2009-11-11 13:20

上面的链接里有提纲,不是指具体的某型导弹,而是整个家族的情况。
目前需要有介绍响尾蛇如何跟踪目标、导引头工作原理的资料。
也欢迎大家提供和他同时代其他空空导弹,如AA-2和PL-2、蜻蜓导弹的资料。
作者: 蓝军参谋    时间: 2009-11-11 13:25

The Sidewinder took several design tips from the Enzian, but made a number of innovations that dramatically improved its performance. The first was to replace the "steering" mirror with a forward-facing mirror rotating around a shaft pointed out the front of the missile. The detector was mounted in front of the mirror. When the long axis of the mirror, the missile axis and the line of sight to the target all fell in the same plane, the reflected rays from the target reached the detector (provided the target was not very far off axis). Therefore, the angle of the mirror at the instant of detection estimated the direction of the target in the roll axis of the missile.

The yaw/pitch direction of the target depended on how far to the outer edge of the mirror the target was. If the target was further off axis, the rays reaching the detector would be reflected from the outer edge of the mirror. If the target was closer on axis, the rays would be reflected from closer to the centre of the mirror. Rotating on a fixed shaft, the mirror's linear speed was higher at the outer edge. Therefore if a target was further off-axis its "flash" in the detector occurred for a briefer time, or longer if it was closer to the center. The off-axis angle could then be estimated by the duration of the reflected pulse of infrared.

The Sidewinder also included a dramatically improved guidance algorithm. The Enzian attempted to fly directly at its target, feeding the direction of the telescope into the control system as it if were a joystick. This meant the missile always flew directly at its target, and under most conditions would end up behind it, "chasing" it down. This meant that the missile had to have enough of a speed advantage over its target that it didn't run out of fuel during the interception.

The Sidewinder isn't guided on the actual position recorded by the detector, but on the change in position since the last sighting. So if the target remained at 5 degrees left between two rotations of the mirror, the electronics would not output any signal to the control system. Consider a missile fired a right angles to its target; if the missile is flying at the same speed as the target it should "lead" it by 45 degrees, flying to an impact point far in front of where the target was when it was fired. If the missile is traveling four times the speed of the target, it should follow an angle about 11 degrees in front. In either case, the missile should keep that angle all the way to interception, which means that the angle that the target makes against the detector is constant. It was this constant angle that the Sidewinder attempted to maintain. This "proportional pursuit" system is very easy to implement, yet it offers high-performance lead calculation almost for free and can respond to changes in the target's flight path,[4] which is much more efficient and makes the missile "lead" the target.
作者: 蓝军参谋    时间: 2009-11-11 13:25

这段文字关于响尾蛇导引头工作原理的,但是翻译很不顺手,有没有专业人士指点一下?
作者: 蓝军参谋    时间: 2009-11-11 13:26

响尾蛇在设计上借鉴了Enzian导弹设计上的一些独到之处,但是更多的还是革新,这些革新最终显著地提高了它的性能。首先,它使用一个前向透镜替代了原有的“操舵”镜,前者被安装在响尾蛇导弹的头部。红外线探测装置则被安装在透镜的前方。当透镜平面的垂线、导弹的中轴线还有从目标射到导弹弹头的红外线处于一个平面时,目标发射的红外线就会被探测器感知(当然这个目标离开导弹轴线不能很远)。因此透镜发现目标时的瞬间角度可以引导导弹飞向目标所在方向(同时导弹自身也在围绕导弹轴线旋转)。

响尾蛇所能探测的目标偏离导弹轴线的方向取决于目标在透镜中映射的影像距离透镜边缘有多远。如果目标距离导弹轴线很远,从目标发出的红外线距离透镜边缘会很近。反之则会距离透镜中央很近。由于透镜被安装在一个固定的长轴上,当目标影像处于透镜边缘的时候,透镜跟踪的线速度会很快,反之则会很慢。因此当目标离开导弹轴线远时,透镜摆动的速度会很快(保持静止的时间会很短暂),反之则会很慢(透镜会长时间保持静止)。目标离轴角度可以根据透镜保持静止时间长短来被估算出来。

此外,响尾蛇还使用了一种改进的跟踪方式来提高自己的命中率。Enzian通过将望远镜捕获的影像直接输送给控制系统来控制导弹飞向目标,就好像前者就是一个操纵杆一样。这意味着导弹在任何条件下都必须保持直线飞行(换句话说,目标影响必须保证落在望远镜视野正中央),通过尾追的方式来击落目标。为此导弹不得不在航程内必须保持足够的速度优势。
作者: 蓝军参谋    时间: 2009-11-11 13:27

上面是我的翻译,感觉错误很多。
作者: redpoint    时间: 2009-11-11 21:37

貌似一些专业的词汇有问题,有学工程英语的没?校对下,偶也学习学习!




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