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- This method is used to calculate the minimum working altitude of AN-APN-220C Doppler navigation radar. 推导出最小起量高度的简捷而实用的计算方法;用此方法计算了AN-APN220C多普勒雷达的最小起量高度.
- This paper analyses in detail the signal relation of Doppler navigation radar altitude system which adopts automatic cycle calibration technique during self calibration. 本文详细分析了采用周期自动校准技术的多普勒导航雷达测高装置自校时的信号关系。
- A virtual instrument based integrated measurement system for Doppler navigation radar is developed. Using direct digital synthesis(DDS)technique,a kind of radar Doppler frequency simulator is introduced. 分析了机载四波束多普勒测速雷达的工作原理,采用直接数字频率合成(DDS)技术进行多普勒频移模拟器的设计,通过数字控制,该模拟器可以产生高分辨率的多普勒频率信号；
- They picked up the yacht on their radar screen. 他们在雷达屏上看到了那艘游艇。
- Requirements for electrical and mechanical installation of marine navigational radar 船用导航雷达电气及机械安装要求
- The radar scanned the sky for enemy planes. 雷达密切监视天空，搜索敌机。
- The watchtower followed the aircraft by radar. 瞭望塔通过雷达追踪这架飞机的行踪。
- Radio Navigation Radar and Remote Control Aid 无线电导航雷达及遥控设备
- Enemy ships were detected on the radar screen. 敌舰的影像已显现在雷达(屏幕)上。
- Aeronautical Radio Navigation Radar 航空无线电导航雷达
- The signal was picked up by a downrange radar station. 该信号被试验飞行方向之内的雷达站收到了。
- Target Identification Navigation Radar 目标识别导航雷达
- A gunboat was detected by the radar. 雷达探测出一炮艇。
- Enemy aircraft were detected by our radar. 敌机被我方雷达发现。
- The ship was provided with radar equipment. 那船装有雷达设备。
- There are enemy aircraft on the radar screen. 雷达萤屏上出现了敌人的飞机。
- Our radar pinpointed the attacking planes. 我们的雷达确定了来袭敌机的精确方位。
- Radar is used to detect objects in the air or at sea. 雷达被用来探测空中或海上的目标。
- A reflected wave received by a radio or radar. 反射波收音机或雷达接收到的反射波
- A triply redundant navigational system. 一个三度冗长的航海系统
