The batcx , which has been equipped with all essential atc facilities , can support about 30 per cent atc handling capacity to maintain a safe and orderly flow of air traffic in case of fire or serious mishaps affecting the main atc facilities 备用航管大楼置有一切必须的备用空管仪器，当有火警或严重事故发生而导致主要空管设施不能使用时，备用航管大楼可提供约三成空管处理能力，维持安全和有秩序的航空交通。
Following successful testing and system integration in end december 1999 , the backup atc facilities ( including the meterological systems ) are available for the controller familiarisationtraining and to back up the atc services in case of need . precision runway monitor ( prm ) 随著系统的测试及融合于一九九九年年底顺利完成，后备航管系统(包括气象设施)现已可用作训练航空交通管制员，以及在有需要时，支援应急航管服务之用。
As there are various types and formats of traffic telegrams , our method shows how to define the formats of telegrams , the grammar rule and the recursive descent - parsing algorithm to analyze the telegrams . the results shows it has high accuracy and adaptation for many types of telegrams , each of which has several formats 该算法基于自上而下的语法分析，实现了包括不规范电报在内的航管电报的自动识别及自动处理，实际应用表明该算法有很好的适应性和准确性，大大提高了识别率和正确率。
Since being assistant chief engineer , i have been in charge of checking an electric drawings and coordinating relationship between special professions . i have completed hundreds of electric designs of industrial and civil architecture independently , including 14 items of engineerings of the guanyin airport . i was invited to examine and verify preliminary design of more than ten projects , such as the station building of the guanyin airport and the 80 , 000m ^ 2 xuzhou international department store and so on . i also participated in checking the standard drawing for electric in jiangsu province 任院副总工程师以来，负责全部电气图纸的审定协调各专业之间的关系，多次处理工程施工中的重大问题，独立完成工业、民用建筑电气的设计数百项主持了观音机场十四项配套工程的设计，参予了观音机场航站、航管楼，徐州国际商厦（ 8万平方米）等十余项工程的初步设计审定，参予江苏省电气标准图的审定，具有较丰富的实践经验。
Applying the results in this research subject , the author devised the schema for environmental adaptability design and reliability design of many important projects ( for example : system product of western system and product of anti - adverse circumstances for atc , etc ) of the factory no . 783 , and the environmental adaptability test verification and reliability evaluation test , trial and use in external field have been passed 笔者运用本研究课题的成果,为783厂多个重点项目(如西方体制系统产品及抗恶劣环境航管产品等)的环境适应性设计和可靠性设计制定了方案,并通过了试验室的环境适应性试验验证和可靠性鉴定试验,外场的试用和使用。
The theoretic of radar digital receiver are sampling , signal orthogonal transform , multirate digital signal processing , dsp algorithm with high efficiency , etc . firstly , introduces the related theory about monopulse secondary surveillance radar . secondly , elaborates on the digital orthogonal demodulate models ’ design and implementation . at last , simulates with matlab to help improve the system performance and test if receiver is work correctly 本文首先介绍了采用单脉冲体制的航管二次雷达( mssr )的基本理论,接着对中频数字化接收机的关键模块:数字化正交解调的设计方案及在fpga上的实现作了详尽的描述,最后应用matlab对系统进行仿真分析,协助改进性能并测试系统是否满足指标。
