雷达用来辐射和接收电磁波并决定其探测方向的设备。雷达在发射时须把能量集中辐射到需要照射的方向;而在接收时又尽可能只接收探测方向的回波,同时分辨出目标的方位和仰角,或二者之一。雷达测量目标位置的三个坐标(方位、仰角和距离)中,有两个坐标(方位和仰角)的测量与天线的性能直接有关。因此,天线性能对于雷达设备比对于其他电子设备(如通信设备等)更为重要。
.man(气象员) , Follow-me car(引航车) , Radar antenna(雷达天线) , Radar screen(雷达屏幕) , Cargo plane ( 货运飞机 )这些单词对于孩子来说有点难,不过简单的孩子还都是知道的,但是在飞...
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... radar advisory 雷达谘询 radar aerial 雷达天线 radar; air intercept 空中拦截雷达 ...
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This paper describes the design principle and key technology of a 2D precise turntable for radar antenna testing.
论述了用于雷达天线测试的某精密二维转台的伺服系统设计原理及关键技术。
参考来源 - 双电机驱动精密二维测试转台伺服系统设计与实现Comparing the result with the theory calculating, the wind-induced vibration calculation method is proved to be correct. Subsequently, the vibration characteristic of vehicle-borne radar antenna platform was studied.
本文研究了车载雷达天线支撑平台的振动特性。
参考来源 - 车载雷达天线及其平台的风载特性研究·2,447,543篇论文数据,部分数据来源于NoteExpress
雷达天线不能旋转。
雷达天线座液压系统中常用到一些特种密封圈。
Some special seal rings were frequently used in hydraulic pressure system of radar antenna pedestal.
雷达天线电机炭刷由于长时间使用磨损严重,接触不良。
The motor carbon brush of radar antenna has been worn seriously due to long time service. It can not touch really.
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