The existing long range primary surveillance radar at mount parker has been used for more than 20 years and is approaching the end of its operational life 目前设于柏架山的长距离一次监察雷达,已经运作了20多年,使用期快将完结。
A ssr can provide more useful information than primary surveillance radar ( psr ) but is subject to the proper functioning of the aircraft s transponder 二次监察雷达较一次监察雷达能提供更多有用的资料,但须依赖航机上应答器之正常运作。
Service charges for use of the very high frequency communications facilities and secondary surveillance radar data to enhance safety and improve operational efficiency 租用甚高频通讯设备及二次监察雷达数据的服务费用以加强飞行安全及运作效率
A secondary surveillance radar provides , after processing of data transmitted by the aircraft , the range , bearing , altitude and identity ( callsign ) of an aircraft 经处理由飞机发出之数据后,二次监察雷达能提供航机的距离、方向、高度和识别(呼号) 。
The system is designed to search , track , process and display ssr equipped aircraft within an airspace of 32 nautical miles in range and 15 , 000 feet in elevation 这套系统可搜寻、追踪、处理和展示装有二次监察雷达应答器的飞机及其飞行资料,覆盖范围达3 2海里,覆盖高度则达1 5 0 0 0英尺。
To modify the existing ssr at mount parker to include aircraft selective addressing facility and atc workstations for mode s operation to enable individual addressing to each aircraft with uniquely allocated identification code 调整柏架山现有的二次监察雷达,以包括可与指定飞机通讯的设施及以s模式操作的航空交通管制站,以便可与获编配不同识别编码的飞机个别通讯
For more than 25 years , the old radar served as a primary surveillance radar ( psr ) with coverage of 200 nautical miles for en - route air traffic surveillance . it is necessary to replace the old radar because of its age and difficulty in acquiring spares 运作逾二十五年的旧雷达为一支监察雷达,具备二百海里以内航空交通航路监察功能。由于旧雷达老化,及采购该雷达的零件亦十分困难,故有需要进行更换。
Compared with conventional ssr , the prm has no scan rate restrictions , thus capable of providing a much faster update rate ( up to 0 . 5 second ) , better target presentation in terms of accuracy , resolution , and track prediction 与传统的二次监察雷达相比,精密跑道监察系统的功能不受扫描速度限制,故更新速度可快许多(最快达0 5秒) ,而且在准确度、清晰度及航迹预测等方面,均达到更佳的目显示效果。
Additional trials on aeronautical telecommunication network ( atn ) , surface movement guidance and control system ( smgcs ) , electronic flight strips ( efs ) , secondary surveillance radar mode s data link and very high frequency data link ( vdl ) are planned for this year 此外,有关航空通讯网络、地面活动引领管制系统、电子飞行纸条、 s模式的二次监察雷达数据链路和甚高频数据链路的进一步试行运作,亦计划在本年进行。