radar surveillance

Secondary Surveillance Radar the ground picks the data and displays it on the ATC radar screen.

地面的二次监视雷达接受到数据并把数据在空管雷达屏幕上显示出来.

The accuracy of secondary monopulse surveillance radar OBA ( off-boresight angle) is one of the most important factors affecting radar angle measuring precision. In order to improve radar angle measuring precision, some algorithms of estimating OBA are presented.

单脉冲二次监视雷达偏离角（OBA，Off-Boresight Angle）表的准确性对于测角精度至关重要，为了提高测角精度，文中提出了几种OBA表的估算方法。

Most importantly, passive radar is virtually undetectable to surveillance receivers and there is also no constraint in spectrum allocation.

其中最重要的是被动雷达对于信号侦察而言本质上是不可探测的，同时在频段分配使用上也没有限制。

The navigation system consists of advanced radar, navigator, sounder, autopilot, log and surveillance.

导航系统由先进的雷达 、 导航仪 、 探测器 、 自动导航器 、 测程仪以及监视系统组成.

The surveillance radar is unserviceable.

监视雷达不工作.

The Sea Giraffe is a state-of-the-art radar system used by navies around the world for surveillance and tracking of air and surface targets.

海洋长颈鹿是一种先进的雷达系统，被世界各国海军用于空中和水面目标的监视和追踪。

Surveillance and target acquisition radar

监视和目标截获雷达

The Structure Design of Antenna System for a Low Altitude Surveillance Radar

某低空搜索雷达天线系统的结构设计

In this paper the problem of tracking target with space surveillance phase array radar is studied.

主要研究空间监视相控阵雷达目标跟踪问题。

Study on Tracking Target with Space Surveillance Phased Array Radar

空间监视相控阵雷达对目标跟踪的研究